This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 8 Cell Structure And Functions – Quiz 36 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 36 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Choose The Correct Statement With Respect To Unicellular Organisms: A) In unicellular organisms, tissues work in co-ordination to perform different functions. B) Unicellular organisms do not require food. C) Unicellular organisms respire and reproduce. D) All unicellular organisms move by cilia. Show Answer Correct Answer: C) Unicellular organisms respire and reproduce. 2. "Powerhouse" or "Energy producer"; makes ATP through cell respiration A) Ribosome. B) Vesicle. C) Mitochondria. D) Vacuole. Show Answer Correct Answer: C) Mitochondria. 3. What do the parts A, B and C represent? A) Phosphate. B) Sugar. C) Nitrogen bases. D) None of the above. Show Answer Correct Answer: A) Phosphate. 4. Cells present in living organism differ in A) Numbers. B) Shape. C) Size. D) All of these. Show Answer Correct Answer: D) All of these. 5. What is the main function of the mitochondrion? A) Protein synthesis. B) Energy production. C) Lipid synthesis. D) Cellular digestion. Show Answer Correct Answer: B) Energy production. 6. Which organelle is responsible for photosynthesis? A) Chloroplasts. B) Mitochondria. C) Ribosomes. D) Golgi Body. Show Answer Correct Answer: A) Chloroplasts. 7. ..... organelle is more active in the germinating seeds, the enzymes of which convert stored fats into carbohydrates. A) Leucoplast. B) Lysosomes. C) Golgi bodies. D) Glyoxisomes. Show Answer Correct Answer: D) Glyoxisomes. 8. Network of protein filaments in a eukaryotic cell that gives the cell its shape and internal organization and is involved in movement A) Cytoskeleton. B) Golgi apparatus. C) Ribosome. D) Endoplasmic reticulum. Show Answer Correct Answer: A) Cytoskeleton. 9. Which of the following is NOT a premise of cell theory? A) All cells arise from other cells. B) All living cells require water for survival. C) All living things are only composed of cells. D) Cell is a functional unit of living things. Show Answer Correct Answer: B) All living cells require water for survival. 10. Animal cell has a rectangular or definite shape. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 11. Stores carbohydrate in the form of glycogen. A) Animal cells. B) Plant cells. C) All the above. D) None of the above. Show Answer Correct Answer: A) Animal cells. 12. Gasoline is to a car as glucose is to a A) Mitochondrion. B) Nucleus. C) Vacuole. D) Cell wall. Show Answer Correct Answer: A) Mitochondrion. 13. Assertion (A):The nucleolus is found inside the nucleus. Reason (R):The nucleolus is responsible for ribosome synthesis. A) Both Assertion and Reason are true, and Reason is the correct explanation of Assertion. B) Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion. C) Assertion is true, but Reason is false. D) Assertion is false, but Reason is true. Show Answer Correct Answer: A) Both Assertion and Reason are true, and Reason is the correct explanation of Assertion. 14. What is the function of the nucleus? A) Produces energy for the cell. B) Controls all cell activities. C) Captures sunlight energy. D) Makes proteins. Show Answer Correct Answer: B) Controls all cell activities. 15. Which process results in the formation of gametes? A) Mitosis. B) Meiosis. C) Binary fission. D) Budding. Show Answer Correct Answer: B) Meiosis. 16. Lysosomes A) Organelles that store genetic information. B) Enzymes to break down waste. C) Structures that synthesize proteins. D) Components that provide energy to the cell. Show Answer Correct Answer: B) Enzymes to break down waste. 17. Assertion (A):The Golgi apparatus forms lysosomes. Reason (R):Lysosomes contain digestive enzymes for breaking down cellular waste. A) Both Assertion and Reason are true, and Reason is the correct explanation of Assertion. B) Both Assertion and Reason are true, but Reason is not the correct explanation of Assertion. C) Assertion is true, but Reason is false. D) Assertion is false, but Reason is true. Show Answer Correct Answer: A) Both Assertion and Reason are true, and Reason is the correct explanation of Assertion. 18. In plant cell cell wall is an ..... layer to cell membrane A) Inner. B) Beside. C) Outer. D) None of the above. Show Answer Correct Answer: C) Outer. 19. Explain why ribosomes are essential for cell function. A) They provide structural support to the cell. B) They are involved in the synthesis of proteins, which are crucial for cell function. C) They store energy for the cell. D) They transport materials within the cell. Show Answer Correct Answer: B) They are involved in the synthesis of proteins, which are crucial for cell function. 20. What is the purpose of the nucleus? A) It processes light energy and water to make sugar and release oxygen. B) It's the powerhouse of the cell that releases energy. C) It's the brain of the cell that directs all cell activity. D) It produces ribosomes. Show Answer Correct Answer: C) It's the brain of the cell that directs all cell activity. 21. A cell includes nucleus, cytoplasm and ..... in animals A) Cell wall. B) Cell membrane. C) Vacuole. D) Chloroplast. Show Answer Correct Answer: B) Cell membrane. 22. What is the molecular basis of physiological processes? A) The types of organic compounds. B) The structure of DNA. C) The cellular organization. D) The energy production. Show Answer Correct Answer: A) The types of organic compounds. 23. The fluid inside of the cell is the cytoplasm. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 24. Explain how the structure of the cell membrane facilitates its function. A) The rigid structure allows for protection. B) The flexible lipid bilayer allows selective permeability. C) The thick wall prevents all substances from entering. D) The solid surface allows for easy transport. Show Answer Correct Answer: B) The flexible lipid bilayer allows selective permeability. 25. This organelle is in all eukaryotic cells. It is the control center of the cell because it holds the DNA. A) Mitochondria. B) Nucleus. C) Chloroplasts. D) Ribosomes. Show Answer Correct Answer: B) Nucleus. ← 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