{"id":12940,"date":"2025-09-25T08:07:34","date_gmt":"2025-09-25T07:07:34","guid":{"rendered":"https:\/\/mcqsadda.com\/?p=12940"},"modified":"2026-01-14T07:42:19","modified_gmt":"2026-01-14T07:42:19","slug":"structure-of-plant-and-animal-cell-top-100-mcqs-with-answer-and-explanation","status":"publish","type":"post","link":"https:\/\/mcqsadda.com\/index.php\/2025\/09\/25\/structure-of-plant-and-animal-cell-top-100-mcqs-with-answer-and-explanation\/","title":{"rendered":"Structure of plant and animal cell Top 100 MCQs With Answer and Explanation"},"content":{"rendered":"\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">1. The basic structural and functional unit of life is ___________.<br><\/mark><\/strong>A) Tissue<br>B) Cell<br>C) Organ<br>D) Organ system<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  All living organisms are made up of cells \u2013 the fundamental unit of life.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">2. The term \u201ccell\u201d was first coined by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Robert Hooke<br>B) Schleiden<br>C) Schwann<br>D) Virchow<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Hooke (1665) observed cork cells under a microscope and called them \u201ccells.\u201d\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">3. The cell theory was proposed by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Watson and Crick<br>B) Schleiden and Schwann<br>C) Darwin and Wallace<br>D) Virchow and Hooke<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Schleiden and Schwann (1838\u201339) proposed the cell theory.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">4. Who stated \u201cAll cells arise from pre-existing cells\u201d?<br><\/mark><\/strong>A) Schwann<br>B) Schleiden<br>C) Virchow<br>D) Hooke<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Rudolf Virchow (1855) added \u201cOmnis cellula e cellula.\u201d\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">5. Prokaryotic cells lack<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Cell wall<br>B) Plasma membrane<br>C) Nucleus with nuclear membrane<br>D) Cytoplasm<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Prokaryotes (bacteria, cyanobacteria) have no true nucleus.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">6. Which of the following is a prokaryote?<br><\/mark><\/strong>A) Amoeba<br>B) Bacteria<br>C) Paramecium<br>D) Algae<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b> Bacteria are prokaryotic, with no membrane-bound nucleus or organelles.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">7. Eukaryotic cells are characterized by the presence of<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Nucleus and membrane-bound organelles<br>B) Cell wall always<br>C) No DNA<br>D) Only RNA<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Eukaryotes have true nucleus and organelles like mitochondria, ER, Golgi.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">8. Plasma membrane is mainly composed of<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Proteins only<br>B) Lipids only<br>C) Proteins and lipids<br>D) Proteins, lipids, and carbohydrates<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: D  <\/b><BR>\n<b>Explanation:<\/b>  Plasma membrane follows the fluid mosaic model (lipid bilayer with proteins).\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">9. Plasma membrane allows only selective substances to pass. It is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Permeable<br>B) Semi-permeable<br>C) Impermeable<br>D) Fully permeable<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Plasma membrane is selectively permeable.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">10. Diffusion across plasma membrane occurs<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Against concentration gradient<br>B) Along concentration gradient<br>C) By using ATP<br>D) By endocytosis only<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Diffusion is passive transport.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">11. The process by which a cell engulfs solid particles is called<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Pinocytosis<br>B) Phagocytosis<br>C) Exocytosis<br>D) Diffusion<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Phagocytosis = \u201ccell eating.\u201d\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">12. The process of ingestion of liquid into cell is called<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Phagocytosis<br>B) Pinocytosis<br>C) Diffusion<br>D) Osmosis<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Pinocytosis = \u201ccell drinking.\u201d\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">13. Osmosis is movement of water across membrane from<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) High solute to low solute<br>B) Low water to high water concentration<br>C) High water to low water concentration<br>D) None<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Osmosis moves water down its concentration gradient.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">14. Plant cells placed in hypotonic solution will<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Shrink<br>B) Burst<br>C) Become turgid<br>D) Plasmolyze<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Water enters cell \u2192 cell swells, becomes turgid.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">15. Animal cells placed in hypertonic solution will<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Burst<br>B) Shrink (crenation)<br>C) Become turgid<br>D) No change<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Water moves out \u2192 cell shrinks.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">16. Plasmolysis is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Shrinking of protoplasm in hypertonic solution<br>B) Swelling of cell in hypotonic solution<br>C) Cell bursting<br>D) Normal condition of cell<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Water loss causes cell membrane to detach from wall.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">17. Which organelle is called the \u201ccontrol center of the cell\u201d?<br><\/mark><\/strong>A) Nucleus<br>B) Mitochondria<br>C) Ribosome<br>D) Golgi body<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Nucleus controls all activities of the cell.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">18. DNA in prokaryotic cell is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Linear and enclosed in nucleus<br>B) Circular and naked<br>C) Absent<br>D) Attached to mitochondria<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Prokaryotic DNA is circular, without histone proteins.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">19. Eukaryotic DNA is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Circular and naked<br>B) Linear and associated with histones<br>C) Absent<br>D) Only RNA<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  DNA in eukaryotes is organized into chromosomes.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">20. The cell wall of plants is made of<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Chitin<br>B) Cellulose<br>C) Peptidoglycan<br>D) Protein<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Plant cell wall is composed mainly of cellulose.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">21. The cell wall of fungi is made of<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Cellulose<br>B) Chitin<br>C) Peptidoglycan<br>D) Protein<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Fungal cell wall is made of chitin.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">22. The cell wall of bacteria is made of<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Chitin<br>B) Cellulose<br>C) Peptidoglycan<br>D) Starch<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Peptidoglycan provides rigidity in bacterial walls.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">23. Animal cells lack<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Plasma membrane<br>B) Nucleus<br>C) Mitochondria<br>D) Cell wall<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: D  <\/b><BR>\n<b>Explanation:<\/b>  Animal cells have only plasma membrane, no cell wall.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>24. Plant cells usually have a large central<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/strong><\/mark>A) Mitochondrion<br>B) Vacuole<br>C) Golgi body<br>D) Nucleus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Vacuoles store water, nutrients, and maintain turgidity.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">25. The green pigment chlorophyll is located in<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Golgi body<br>B) Mitochondria<br>C) Chloroplasts<br>D) Nucleus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Chloroplasts contain chlorophyll for photosynthesis.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">26. The double-membrane structure containing DNA in eukaryotic cells is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Mitochondria<br>B) Chloroplast<br>C) Nucleus<br>D) Ribosome<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Nucleus is bound by a double nuclear envelope and contains DNA.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">27. The liquid content of the nucleus is called<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Cytoplasm<br>B) Nucleoplasm<br>C) Matrix<br>D) Chromatin<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Nucleoplasm (nuclear sap) surrounds chromatin and nucleolus.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">28. Chromatin is made of<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) DNA only<br>B) DNA and proteins (histones)<br>C) RNA only<br>D) Protein only<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Chromatin = DNA wrapped around histone proteins.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">29. The site of ribosome synthesis in nucleus is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Nuclear pore<br>B) Chromatin<br>C) Nucleolus<br>D) Nuclear envelope<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>   Nucleolus is the center for rRNA synthesis and ribosome assembly.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">30. Which organelle is called the \u201cpowerhouse of the cell\u201d?<br><\/mark><\/strong>A) Nucleus<br>B) Ribosome<br>C) Mitochondria<br>D) Golgi apparatus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Mitochondria generate ATP via cellular respiration.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">31. Mitochondria have their own<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) DNA and ribosomes<br>B) Only DNA<br>C) Only RNA<br>D) None<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Mitochondria are semi-autonomous and can synthesize some proteins.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">32. The inner folds of mitochondria are called<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Thylakoids<br>B) Cristae<br>C) Grana<br>D) Matrix<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Cristae increase surface area for ATP production.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">33. The fluid inside mitochondria is called<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Stroma<br>B) Cytoplasm<br>C) Matrix<br>D) Nucleoplasm<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Mitochondrial matrix contains enzymes for Krebs cycle.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">34. The organelle responsible for protein synthesis is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Golgi body<br>B) Lysosome<br>C) Ribosome<br>D) Vacuole<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Ribosomes synthesize proteins from mRNA.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">35. Ribosomes are made of:<br><\/mark><\/strong>A) Proteins only<br>B) RNA only<br>C) rRNA and proteins<br>D) DNA and proteins<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Ribosomes consist of ribosomal RNA and proteins.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">36. The ribosomes attached to ER form:<br><\/mark><\/strong>A) Smooth ER<br>B) Rough ER<br>C) Golgi complex<br>D) Plastids<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Rough ER is studded with ribosomes and synthesizes proteins.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">37. Smooth endoplasmic reticulum is mainly involved in:<br><\/mark><\/strong>A) Protein synthesis<br>B) Lipid and steroid synthesis<br>C) ATP production<br>D) Cell division<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Smooth ER manufactures lipids and detoxifies harmful substances.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">38. Rough ER is mainly involved in:<br><\/mark><\/strong>A) Lipid synthesis<br>B) Protein synthesis<br>C) ATP synthesis<br>D) DNA replication<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Ribosomes on RER make proteins for secretion and membranes.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">39. The organelle that packages and modifies proteins is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Lysosome<br>B) Ribosome<br>C) Golgi apparatus<br>D) Vacuole<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Golgi modifies, sorts, and packages proteins for transport.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">40. The Golgi apparatus was discovered by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Camillo Golgi<br>B) Robert Hooke<br>C) Schleiden<br>D) Schwann<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>   Italian scientist Golgi discovered it in 1898.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">41. The \u201csuicidal bags\u201d of the cell are<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Ribosomes<br>B) Lysosomes<br>C) Vacuoles<br>D) Golgi bodies<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Lysosomes contain digestive enzymes that can destroy cell contents.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">42. Lysosomes contain<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) DNA<br>B) Digestive enzymes<br>C) Ribosomes<br>D) RNA<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Hydrolytic enzymes digest macromolecules.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">43. Which organelle digests worn-out cell organelles?<br><\/mark><\/strong>A) Ribosome<br>B) Lysosome<br>C) Vacuole<br>D) Nucleus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Lysosomes recycle and digest damaged organelles.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">44. The network of tubules providing intracellular transport is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Ribosome<br>B) ER (Endoplasmic Reticulum)<br>C) Golgi body<br>D) Lysosome<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  ER transports proteins and lipids inside cells.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">45. Ribosomes are absent in<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Rough ER<br>B) Cytoplasm<br>C) Nucleus<br>D) Smooth ER<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: D  <\/b><BR>\n<b>Explanation:<\/b>  SER lacks ribosomes; hence it does not synthesize proteins.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>46. Which organelle is abundant in liver cells for detoxification?<br><\/strong><\/mark>A) Lysosome<br>B) Rough ER<br>C) Smooth ER<br>D) Ribosome<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  SER detoxifies drugs and harmful substances in liver.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">47. Which cell organelle is called \u201cprotein factory\u201d?<br><\/mark><\/strong>A) Ribosome<br>B) Mitochondria<br>C) Nucleus<br>D) Golgi body<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Ribosomes translate mRNA into proteins.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">48. Proteins synthesized in RER are transported to Golgi by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Lysosomes<br>B) Vesicles<br>C) Centrioles<br>D) Vacuoles<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Transport vesicles carry proteins from ER to Golgi.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">49. Secretory vesicles of cell originate from<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Ribosomes<br>B) Golgi apparatus<br>C) Lysosomes<br>D) Mitochondria<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Golgi packages secretory products into vesicles.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">50. Autolysis (self-destruction of cell) is caused by rupture of<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Ribosomes<br>B) Golgi body<br>C) Lysosomes<br>D) Vacuole<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Release of hydrolytic enzymes causes cell death (autolysis).\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">51. Plastids are found only in<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Animal cells<br>B) Plant cells<br>C) Bacteria<br>D) Fungi<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Plastids are double-membrane organelles present only in plants and algae.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">52. The green pigment chlorophyll is located in<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Mitochondria<br>B) Chloroplasts<br>C) Golgi apparatus<br>D) Nucleus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Chloroplasts contain chlorophyll essential for photosynthesis.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">53. The double-membrane organelle with its own DNA and ribosomes in plants is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Ribosome<br>B) Chloroplast<br>C) Lysosome<br>D) Vacuole<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Chloroplasts are semi-autonomous, containing DNA and 70S ribosomes.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">54. Chromoplasts contain<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><\/mark><\/strong><br>A) Chlorophyll<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><br><\/mark><\/strong>B) Carotenoids (xanthophylls and carotene)<br>C) Starch<br>D) Protein<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Chromoplasts give yellow, orange, and red colors to fruits and flowers.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">55. Leucoplasts are specialized for storing<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Pigments<br>B) Starch, oils, and proteins<br>C) DNA<br>D) Hormones<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Leucoplasts are colorless plastids for food storage.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">56. Amyloplasts store<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Oil<br>B) Starch<br>C) Protein<br>D) Pigments<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Amyloplasts are starch-storing leucoplasts.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">57. Elaioplasts store<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Lipids (oils)<br>B) Proteins<br>C) Starch<br>D) Pigments<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Elaioplasts store fats and oils.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">58. Aleuroplasts store<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Pigments<br>B) Starch<br>C) Proteins<br>D) Oils<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Aleuroplasts are protein-storing plastids.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">59. The site of light reactions of photosynthesis is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Mitochondria<br>B) Cytoplasm<br>C) Thylakoid membrane of chloroplast<br>D) Stroma of chloroplast<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Light reactions occur in thylakoids, producing ATP and NADPH.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">60. The site of dark reaction (Calvin cycle) is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Cristae<br>B) Cytoplasm<br>C) Stroma of chloroplast<br>D) Ribosome<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  The stroma contains enzymes for the Calvin cycle.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">61. The stacked structures in chloroplasts are called<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Cristae<br>B) Grana<br>C) Thylakoids<br>D) Stroma<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Grana are stacks of thylakoid discs.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">62. The large central vacuole in plant cells is filled with<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Cytoplasm<br>B) Cell sap<br>C) Chromatin<br>D) Proteins only<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Vacuoles store water, ions, sugars, pigments, and waste products.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">63. In animal cells, vacuoles are<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Large and central<br>B) Small and temporary<br>C) Absent<br>D) Pigment-filled<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Vacuoles are large in plants, small in animal cells.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">64. Plant cell wall is mainly composed of<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Chitin<br>B) Cellulose<br>C) Glycogen<br>D) Protein<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Plant cell wall is rigid and made of cellulose fibers.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">65. Middle lamella of plant cell wall is rich in<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Cellulose<br>B) Calcium pectate<br>C) Lignin<br>D) Protein<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Middle lamella cements plant cells together.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">66. Which of the following is present only in plant cells, not in animal cells?<br><\/mark><\/strong>A) Plasma membrane<br>B) Mitochondria<br>C) Cell wall<br>D) Ribosomes<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Cell wall is a plant cell-specific structure.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">67. Which of the following is present only in animal cells, not in plant cells?<br><\/mark><\/strong>A) Chloroplast<br>B) Centrioles<br>C) Cell wall<br>D) Vacuole<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Centrioles are present in animal cells and help in cell division.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">68. The jelly-like substance between cell wall and cell membrane in plants is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Plasmodesmata<br>B) Middle lamella<br>C) Protoplasm<br>D) Cytosol<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Middle lamella holds neighboring plant cells together.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">69. In plant cells, cytoplasmic connections between cells are called<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Desmosomes<br>B) Plasmodesmata<br>C) Gap junctions<br>D) Tight junctions<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Plasmodesmata connect cytoplasm of adjacent plant cells.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\"><strong>70. Cellulose is absent in<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/strong><\/mark>A) Plant cell wall<br>B) Algal cell wall<br>C) Animal cells<br>D) Cotton fibers<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Animal cells have no cell wall or cellulose.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">71. Which pigment provides red, orange, and yellow color to plant parts?<br><\/mark><\/strong>A) Chlorophyll<br>B) Carotenoids<br>C) Anthocyanins<br>D) Phycobilins<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Carotenoids in chromoplasts provide bright colors.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">72. Anthocyanins are pigments present in<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Chloroplast<br>B) Vacuole sap<br>C) Mitochondria<br>D) Nucleus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Anthocyanins dissolved in vacuole give red, blue, purple color.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">73. Which plant cell organelle stores waste products?<br><\/mark><\/strong>A) Lysosome<br>B) Nucleus<br>C) Vacuole<br>D) Golgi body<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Vacuole acts as a storage site for wastes and toxins.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">74. Which of the following organelles is absent in mature red blood cells of mammals?<br><\/mark><\/strong>A) Ribosome<br>B) Nucleus<br>C) Mitochondria<br>D) All of the above<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: D  <\/b><BR>\n<b>Explanation:<\/b>  Mammalian RBCs lack nucleus, ribosomes, and mitochondria for more hemoglobin space.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">75. The feature present in plant cells but absent in animal cells is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Cell wall, chloroplast, large central vacuole<br>B) Plasma membrane, mitochondria, ribosome<br>C) Centrioles, lysosomes, small vacuole<br>D) Golgi, ER, cytoplasm<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  These are unique distinguishing features of plant cells.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">76. The term \u201cprotoplasm\u201d was coined by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Robert Brown<br>B) J.E. Purkinje<br>C) Robert Hooke<br>D) Virchow<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Purkinje (1839) coined \u201cprotoplasm\u201d for living content inside cell.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">77. The first cell organelle discovered was<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><\/mark><\/strong><br>A) Mitochondria<br>B) Nucleus<br>C) Chloroplast<br>D) Ribosome<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Robert Brown (1831) discovered the cell nucleus.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">78. Which is the smallest cell in the human body?<br><\/mark><\/strong>A) RBC<br>B) Nerve cell<br>C) Sperm cell<br>D) Platelet<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Human sperm is one of the smallest cells.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">79. Which is the largest human cell?<br><\/mark><\/strong>A) Liver cell<br>B) Ovum (egg cell)<br>C) Neuron<br>D) Muscle cell<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  The ovum is the largest single cell in the human body.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">80. Which is the longest cell in the human body?<br><\/mark><\/strong>A) RBC<br>B) Muscle cell<br>C) Nerve cell (neuron)<br>D) Epithelial cell<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Neurons can extend over a meter in length.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">81. Which organelle is absent in prokaryotic cells?<br><\/mark><\/strong>A) Ribosome<br>B) Mitochondria<br>C) Plasma membrane<br>D) DNA<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Prokaryotes lack membrane-bound organelles.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">82. Which organelle is known as \u201ccell\u2019s digestive system\u201d?<br><\/mark><\/strong>A) Ribosome<br>B) Lysosome<br>C) ER<br>D) Golgi body<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Lysosomes digest waste and worn-out organelles.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">83. Which organelle is called \u201ccell\u2019s post office\u201d?<br><\/mark><\/strong>A) Nucleus<br>B) Golgi apparatus<br>C) Ribosome<br>D) Mitochondria<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Golgi sorts, modifies, and packages proteins like a postal system.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">84. Semi-autonomous organelles include<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Nucleus, mitochondria, chloroplast<br>B) Golgi and lysosome<br>C) ER and vacuole<br>D) Ribosome and centrosome<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  They have their own DNA and ribosomes, able to divide.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">85. The endosymbiotic theory explains the origin of<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Nucleus<br>B) Mitochondria and chloroplasts<br>C) Ribosomes<br>D) Cell wall<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  They originated from free-living bacteria engulfed by ancestors of eukaryotic cells.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">86. The cytoskeleton of a cell is made of<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Microtubules and microfilaments<br>B) Mitochondria and ribosomes<br>C) Lysosomes and vacuoles<br>D) ER and Golgi<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Cytoskeleton provides shape, support, and intracellular transport.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">87. Centrioles are absent in<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Animal cells<br>B) Plant cells<br>C) Protozoa<br>D) Fungi<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Higher plants lack centrioles, but animal cells have them.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">88. Which organelle is involved in photorespiration in plants?<br><\/mark><\/strong>A) Chloroplast<br>B) Mitochondria<br>C) Peroxisome<br>D) Ribosome<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Peroxisomes participate in photorespiration and fatty acid metabolism.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">89. The \u201cribosome\u201d was first observed by<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) George Palade<br>B) Robert Brown<br>C) Schleiden<br>D) Schwann<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: A  <\/b><BR>\n<b>Explanation:<\/b>  Palade (1955) discovered ribosomes using electron microscopy.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">90. The outermost layer of animal cell is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Cell wall<br>B) Plasma membrane<br>C) Capsule<br>D) Middle lamella<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Animal cells lack cell wall; plasma membrane is outermost.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">91. The outermost layer of plant cell is<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Plasma membrane<br>B) Cell wall<br>C) Middle lamella<br>D) Capsule<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Cell wall of cellulose provides rigidity.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">92. Which organelle is called the \u201cengine of the cell\u201d?<br><\/mark><\/strong>A) Ribosome<br>B) Mitochondria<br>C) Golgi body<br>D) Nucleus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Mitochondria generate ATP, the cell\u2019s energy currency.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">93. The cell junctions in plant cells are<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Desmosomes<br>B) Plasmodesmata<br>C) Gap junctions<br>D) Tight junctions<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Plasmodesmata connect cytoplasm of neighboring plant cells.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">94. Cell division in animal cells starts with<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Cell plate formation<br>B) Cleavage furrow formation<br>C) Spindle disappearance<br>D) Nuclear fusion<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Animal cytokinesis occurs by furrowing of membrane.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">95. Cell division in plant cells starts with<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Cleavage furrow formation<br>B) Cell plate formation<br>C) Spindle disintegration<br>D) Chromosome condensation<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Cellulose vesicles form a plate dividing plant cells.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">96. In animal cells, lysosomes are formed from<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) ER<br>B) Ribosomes<br>C) Golgi apparatus<br>D) Nucleus<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Golgi produces lysosomal vesicles with hydrolytic enzymes.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">97. Which organelle detoxifies hydrogen peroxide?<\/mark><br><\/strong>A) Lysosome <br>B) Peroxisome<br>C) Ribosome<br>D) ER<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Peroxisomes break down H\u2082O\u2082 into water and oxygen.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">98. The plant vacuole membrane is called<strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">___________.<\/mark><\/strong><br><\/mark><\/strong>A) Plasmalemma<br>B) Tonoplast<br>C) Cell wall<br>D) Endomembrane<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  Tonoplast is a specialized membrane surrounding vacuole.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">99. Which of the following is absent in mature mammalian red blood cells?<br><\/mark><\/strong>A) Plasma membrane<br>B) Nucleus and organelles<br>C) Hemoglobin<br>D) Cytoplasm<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: B  <\/b><BR>\n<b>Explanation:<\/b>  RBCs lack nucleus and organelles to maximize oxygen-carrying hemoglobin.\n <\/p>\n<\/div>\n\n\n\n<p class=\"has-large-font-size\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-luminous-vivid-orange-color\">100. Which structure is common to both plant and animal cells?<br><\/mark><\/strong>A) Cell wall<br>B) Chloroplast<br>C) Plasma membrane, mitochondria, ribosomes<br>D) Centrioles<\/p>\n\n\n\n<button class=\"acc\">Show Answer<\/button>\n<div class=\"pnl\">\n  <p style=\"font-size: 22px;\"><b> Answer: C  <\/b><BR>\n<b>Explanation:<\/b>  Both cell types have plasma membrane, ribosomes, mitochondria, ER, Golgi, etc.\n <\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>1. The basic structural and functional unit of life is ___________.A) TissueB) CellC) OrganD) Organ system Show Answer Answer: B Explanation: All living organisms are made up of cells \u2013 the fundamental unit of life. 2. The term \u201ccell\u201d was first coined by___________.A) Robert HookeB) SchleidenC) SchwannD) Virchow Show Answer Answer: A Explanation: Hooke (1665)<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"[]"},"categories":[7],"tags":[16394,16151,16133,16155,16154,16147,16158,16139,16390,16384,16400,16399,16393,16386,16397,16135,16383,16389,16385,16392,16387,4029,16156,5649,5623,16395,16398,16391,16134,16388,16132,10997,16140,16396],"class_list":{"0":"post-12940","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-biology","7":"tag-animal-cell","8":"tag-biology-learning","9":"tag-biology-mcqs","10":"tag-biology-preparation-material","11":"tag-biology-questions-and-answers","12":"tag-biology-quiz","13":"tag-biology-revision","14":"tag-biology-study-material","15":"tag-cell-division","16":"tag-cell-functions","17":"tag-cell-membrane","18":"tag-cell-organelles","19":"tag-cell-structure","20":"tag-cell-wall","21":"tag-chloroplast","22":"tag-competitive-exam-biology","23":"tag-cytology","24":"tag-cytoplasm","25":"tag-endoplasmic-reticulum","26":"tag-golgi-apparatus","27":"tag-lysosomes","28":"tag-mcqs-adda","29":"tag-mcqs-for-biology-exam","30":"tag-mcqs-for-pc-psi-sda-fda-pdo-vao-banking-kas-ias-ssc-gd-ssc-chsl-ssc-cgl-for-all-compitative-exams","31":"tag-mcqs-for-sda-fda-pdo-vao-banking-kas-ias-ssc-gd-ssc-chsl-ssc-cgl-for-all-compitative-exams","32":"tag-mitochondria","33":"tag-nucleus","34":"tag-plant-cell","35":"tag-psc-biology-mcqs","36":"tag-ribosomes","37":"tag-ssc-biology-mcqs","38":"tag-structure-of-plant-and-animal-cell-top-100-mcqs-with-answer-and-explanation","39":"tag-upsc-biology-mcqs","40":"tag-vacuoles"},"_links":{"self":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/12940","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/comments?post=12940"}],"version-history":[{"count":102,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/12940\/revisions"}],"predecessor-version":[{"id":37165,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/posts\/12940\/revisions\/37165"}],"wp:attachment":[{"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/media?parent=12940"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/categories?post=12940"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mcqsadda.com\/index.php\/wp-json\/wp\/v2\/tags?post=12940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}