This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 8 Cell Structure And Functions – Quiz 77 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 77 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which part of the cell is responsible for maintaining its shape and structure? A) Cell membrane. B) Cytoskeleton. C) Nucleus. D) Ribosome. Show Answer Correct Answer: B) Cytoskeleton. 2. What is the main function of chloroplasts in plant cells? A) To store genetic material. B) To produce energy through cellular respiration. C) To make food using light energy. D) To control cell activities. Show Answer Correct Answer: C) To make food using light energy. 3. Small, membrane-enclosed organelles that contain enzymes involved in metabolic reactions A) Centrosomes. B) Peroxisomes. C) Chromosomes. D) Lysosomes. Show Answer Correct Answer: B) Peroxisomes. 4. Which part of the cell controls its activities? A) Cytoplasm. B) Nucleus. C) Cell membrane. D) Vacuole. Show Answer Correct Answer: B) Nucleus. 5. Breaks down waste A) Lysosomes. B) Ribosomes. C) Mitochondria. D) Golgi apparatus. Show Answer Correct Answer: A) Lysosomes. 6. What is the function of the ER in a cell? A) It stores food and other materials. B) It carries proteins and other materials from one part of the cell to another. C) It captures energy from sunlight. D) It breaks down large food particles. Show Answer Correct Answer: B) It carries proteins and other materials from one part of the cell to another. 7. Function of the cell membrane to not allow the substance or substances to pass through the membrane. A) Permeable. B) Impermeable. C) Semi-permeable. D) None of the above. Show Answer Correct Answer: B) Impermeable. 8. This is a series of sac-like tunnels that have ribosomes attached. The main function of this organelle is to make and process proteins. A) Nucleus. B) Rough ER. C) Smooth ER. D) Golgi apparatus. Show Answer Correct Answer: B) Rough ER. 9. Which of the following is not one of the seven life processes? A) Nutrition. B) Respiration. C) Photosynthesis. D) Movement. Show Answer Correct Answer: C) Photosynthesis. 10. What is the primary function of diffusion in cells? A) To move water molecules. B) To transport large particles. C) To equalize concentration gradients. D) To produce energy. Show Answer Correct Answer: C) To equalize concentration gradients. 11. Which plant tissue type provides support and is often found in the leaf veins and stems? A) Parenchyma. B) Collenchyma. C) Sclerenchyma. D) Epidermis. Show Answer Correct Answer: C) Sclerenchyma. 12. Garbage men of the cell. Enzyme vesicle.Breaks down larger food molecules into smaller molecules; digests old cell parts. A) Vesicles. B) Lysosomes. C) Mirochondria. D) Golgi bodies. Show Answer Correct Answer: B) Lysosomes. 13. Helps transport proteins. A) Cell wall. B) Endoplasmic reticulum. C) Lysosome. D) Vacuole. Show Answer Correct Answer: B) Endoplasmic reticulum. 14. There are cell structures that are common to animals, plants, and many other living organisms.Parts of a Cell A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 15. Which plant organelle stores water? A) Nucleus. B) Ribosome. C) Lysosome. D) Vacuole. Show Answer Correct Answer: D) Vacuole. 16. The thick fluid region of a cell located inside the cell membrane or between the cell membrane and nucleus A) Cytoplasm. B) Cell wall. C) Organelle. D) Golgi apparatus. Show Answer Correct Answer: A) Cytoplasm. 17. Aria is helping her teacher clean up the science lab after an experiment. She notices that some cleaning agents are specifically used to break down and remove old or excess materials from the lab equipment. This reminds her of a cell structure that contains digestive enzymes for the breakdown of excess or worn-out cellular substances. Which structure is she thinking of? A) Peroxisome. B) Lysosome. C) Ribosome. D) Mitochondrion. Show Answer Correct Answer: B) Lysosome. 18. Explain the function of chloroplasts in plant cells. A) Chloroplasts function to conduct photosynthesis, converting sunlight into chemical energy in the form of glucose. B) Chloroplasts are responsible for cellular respiration. C) Chloroplasts store water for plant cells. D) Chloroplasts help in the absorption of nutrients from the soil. Show Answer Correct Answer: A) Chloroplasts function to conduct photosynthesis, converting sunlight into chemical energy in the form of glucose. 19. The peroxisome gets its name from its interaction with hydrogen peroxide. If a liver cell is detoxifying alcohol and some other poisons, it does so by removal of hydrogen from the molecules. What, then, do the enzymes of the peroxisome do? A) Combine the hydrogen with ATP. B) Use the hydrogen to break down hydrogen peroxide. C) Transfer the harmful substances to the mitochondria. D) Transfer the hydrogen to oxygen molecules. Show Answer Correct Answer: D) Transfer the hydrogen to oxygen molecules. 20. The unit of inheritance present in Nucleus? A) Genes. B) Plastids. C) Chromosomes. D) Chloroplast. Show Answer Correct Answer: A) Genes. 21. The control centre of all the activities of a cell is A) Nucleus. B) Nucleoplasm. C) Cytoplasm. D) Organelles. Show Answer Correct Answer: A) Nucleus. 22. What regulates what enters and leaves the cell and provides protection and support? A) Nucleus. B) Cell membrane. C) Ribosomes. D) Cytoplasm. Show Answer Correct Answer: B) Cell membrane. 23. What does the text imply about the complexity of living organisms? A) They are only chemical reactions. B) They are uniform and identical. C) They are complex and diverse. D) They are simple and predictable. Show Answer Correct Answer: C) They are complex and diverse. 24. There are how many pairs of chromosomes in every normal human cell? A) 24. B) 25. C) 23. D) 21. Show Answer Correct Answer: C) 23. 25. An average adult carries around about ..... A) 3 kg. B) 2kg. C) 4kg. D) 1kg. Show Answer Correct Answer: B) 2kg. ← 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