This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 8 Cell Structure And Functions – Quiz 42 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 42 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which organelle contains digestive enzymes to break down waste? A) Ribosome. B) Lysosome. C) Nucleus. D) Chloroplast. Show Answer Correct Answer: B) Lysosome. 2. During which phase of the cell cycle does DNA replication occur? A) G1 phase. B) S phase. C) G2 phase. D) M phase. Show Answer Correct Answer: B) S phase. 3. Which of the following is a characteristic of Gram negative bacteria" A) Lipid and Lipoprotein content is about 58% which is quite high compared to Gram positive bacteria. B) Thickness of wall is about 20-30 nm. C) Highly sensitive to penicillin. D) Only one layer in wall. Show Answer Correct Answer: A) Lipid and Lipoprotein content is about 58% which is quite high compared to Gram positive bacteria. 4. Which of the following best describes the cytoplasm? A) A rigid structure that provides support. B) A jelly-like substance that holds organelles in place. C) A membrane that controls entry and exit of substances. D) A storage area for nutrients. Show Answer Correct Answer: B) A jelly-like substance that holds organelles in place. 5. What is the function of smooth endoplasmic reticulum (ER)? A) Removes harmful substances from a cell. B) Synthesizes proteins. C) Transports oxygen. D) Stores the genetic material of the cell. Show Answer Correct Answer: A) Removes harmful substances from a cell. 6. Where in the cell does cellular respiration happen? A) Chloroplast. B) Mitochondria. C) Nucleus. D) Cell membrane. Show Answer Correct Answer: B) Mitochondria. 7. Name one example of prokaryotic cell. A) Blue Green Algae. B) Bacteria. C) Plant. D) Both A and B. Show Answer Correct Answer: D) Both A and B. 8. Which cell organelle is green and contains chlorophyll? A) Chloroplasts. B) Mitochondria. C) Ribosomes. D) Vacuole. Show Answer Correct Answer: A) Chloroplasts. 9. Some cells, such as human nerve and muscle cells, contain many more mitochondria than do other cells, such as skin cells. Why do some cells have more mitochondria than others? A) The cells use more energy. B) The cells store more nutrients. C) The cells degrade more proteins. D) The cells divide more frequently. Show Answer Correct Answer: A) The cells use more energy. 10. They contain enzymes that act on food particles. A) Lysosomes. B) Golgi complex,. C) Mitochondria. D) None of the above. Show Answer Correct Answer: A) Lysosomes. 11. Which structure is present in animal cells but usually absent in plant cells? A) Cell wall. B) Chloroplast. C) Centriole. D) Large central vacuole. Show Answer Correct Answer: C) Centriole. 12. Where are cell organelles located? A) Vacuole. B) Cell wall. C) Nucleus. D) Cytoplasm. Show Answer Correct Answer: D) Cytoplasm. 13. Channels in the cell wall that allow the exchange of substances between adjacent cells. A) Peroxisome. B) Plasmodesma. C) Plasmodesmata. D) Vacuole. Show Answer Correct Answer: C) Plasmodesmata. 14. Which of the following can change into an organism? A) Muscle cell. B) Nerve cell. C) Egg cell. D) Blood cell. Show Answer Correct Answer: C) Egg cell. 15. Green coloured plastids are called ..... A) Chloroplasts. B) Chromoplasts. C) Chromosomes. D) Leucoplasts. Show Answer Correct Answer: A) Chloroplasts. 16. Which of the following tissues has dead cells? A) Parenchyma. B) Sclerenchyma. C) Collenchyma. D) Epithelial tissue. Show Answer Correct Answer: B) Sclerenchyma. 17. Find the correct statement related to plasma membrane. A) Plasma membrane has a typical Protein-lipid-protein structure in distinct layers. B) Molecules are transported across the membrane by active process without using energy. C) Neutral solute molecules may pass through by diffusion along a concentration gradient. D) Movement of water through the membrane is by osmosis from hypertonic solution towards hypotonic solution. Show Answer Correct Answer: C) Neutral solute molecules may pass through by diffusion along a concentration gradient. 18. A single-celled organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle . A) Prokaryote. B) Eukaryote. C) Nucleus. D) Single-celled organism. Show Answer Correct Answer: A) Prokaryote. 19. What gives colour to plant cells A) Synthetic dyes. B) Indigo, woad. C) Plastids. D) Plastics. Show Answer Correct Answer: C) Plastids. 20. ATP A) Adenosine diphosphate, energy currency of the cell. B) Triphosphate, energy currency of the cell. C) Adenosine monophosphate, energy storage molecule. D) Triphosphate, waste product of metabolism. Show Answer Correct Answer: B) Triphosphate, energy currency of the cell. 21. What tool do you use to view cells? A) Metric ruler. B) Magnifying glass. C) Microscope. D) Petri dish. Show Answer Correct Answer: C) Microscope. 22. The folds found inside the mitochondria that give more surface area for energy-releasing processes to take place are referred to as the ..... A) Chromosomes. B) Cilia. C) Cristae. D) Cytoskeleton. Show Answer Correct Answer: C) Cristae. 23. Allows materials to come in and out of the cell A) Cell Wall. B) Cell Membrane. C) Vacuole. D) Mitochondria. Show Answer Correct Answer: B) Cell Membrane. 24. Which of the following organelles produces large amounts of ATP? A) Nucleus. B) Mitochondria. C) Ribosomes. D) Endoplasmic reticulum. Show Answer Correct Answer: B) Mitochondria. 25. Tissues combine to form A) Nucleus. B) Cells. C) Organism. D) Organs. Show Answer Correct Answer: D) Organs. ← PreviousNext →Related QuizzesClass 8 Science Chapter 8 Cell Structure And Functions Quiz 1Class 8 Science Chapter 8 Cell Structure And Functions Quiz 2Class 8 Science Chapter 8 Cell Structure And Functions Quiz 3Class 8 Science Chapter 8 Cell Structure And Functions Quiz 4Class 8 Science Chapter 8 Cell Structure And Functions Quiz 5Class 8 Science Chapter 8 Cell Structure And Functions Quiz 6Class 8 Science Chapter 8 Cell Structure And Functions Quiz 7Class 8 Science Chapter 8 Cell Structure And Functions Quiz 8Class 8 Science Chapter 8 Cell Structure And Functions Quiz 9Class 8 Science Chapter 8 Cell Structure And Functions Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books