This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 8 Cell Structure And Functions – Quiz 67 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 67 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which process allows cells to maintain a stable internal environment? A) Homeostasis. B) Photosynthesis. C) Respiration. D) Digestion. Show Answer Correct Answer: A) Homeostasis. 2. Looking at a cell under microscope, you note that it is a prokaryote. How do you know? A) The cell lacks cytoplasm. B) The cell lacks a nucleus. C) The cell lacks a cell membrane. D) The cell lacks genetic materials. Show Answer Correct Answer: B) The cell lacks a nucleus. 3. What is the job of the vacuoles? A) To transport proteins to from the Golgi. B) To store food, water, and wastes. C) To release energy. D) To make ribosomes. Show Answer Correct Answer: B) To store food, water, and wastes. 4. What is the role of the vacuole in a cell? A) It helps in the synthesis of proteins. B) It stores water, nutrients, and waste products. C) It converts glucose into energy. D) It assists in the process of photosynthesis. Show Answer Correct Answer: B) It stores water, nutrients, and waste products. 5. This scientist was the first to identify cells and name them: A) Hooke. B) Leeunwenhoek. C) Schleiden. D) Virchow. Show Answer Correct Answer: A) Hooke. 6. Organism whose cells contain a nucleus A) Prokaryote. B) Eukaryote. C) Golgi apparatus. D) Chloroplast. Show Answer Correct Answer: B) Eukaryote. 7. Which of the following is a sac like structure that stores water? A) Vacuole. B) Golgi apparatus. C) Nucleus. D) Endoplasmic reticulum. Show Answer Correct Answer: A) Vacuole. 8. How were cell discovered? A) Using metrics units. B) Using science graphics. C) Through microscope observations. D) Observing the cell shape and size. Show Answer Correct Answer: C) Through microscope observations. 9. The human body is composed to trillions of cells A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 10. What is the basic structural, functional, and biological unit of all known living organisms? A) Cell. B) Tissue. C) Organ. D) Organism. Show Answer Correct Answer: A) Cell. 11. Is a green pigment that uses the energy from sunlight to make food for plant cells A) Chlorophyll. B) Cell wall. C) Chloroplasts. D) None of the above. Show Answer Correct Answer: A) Chlorophyll. 12. Explain how the structure of the cell membrane contributes to its function. A) The rigid structure allows for protection. B) The lipid bilayer provides a flexible barrier. C) The thick wall prevents all substances from entering. D) The solid structure allows for easy transport. Show Answer Correct Answer: B) The lipid bilayer provides a flexible barrier. 13. While observing the onion cells under microscope, what is the blank looking structure called ..... A) Vacuole. B) Plastids. C) All the above. D) None of the above. Show Answer Correct Answer: A) Vacuole. 14. What is the magnification power of a electron microscope? A) 1000 to 5000. B) 1, 00, 000 to 5, 00, 000. C) 600000000 to 9000000000. D) 7888888 to 5555555. Show Answer Correct Answer: B) 1, 00, 000 to 5, 00, 000. 15. What happens if one organelle stops working? A) The cell stops photosynthesis. B) The cell system can be affected. C) The cell becomes a system. D) The cell produces more organelles. Show Answer Correct Answer: B) The cell system can be affected. 16. An organism made of one cell is called A) Unicellular organism. B) Multicellular organism. C) All the above. D) None of the above. Show Answer Correct Answer: A) Unicellular organism. 17. During osmosis A) Water moves from high to low concentration. B) Large or oddly shaped molecules move across a cell membrane. C) Water moves when energy is used. D) Proteins are built. Show Answer Correct Answer: A) Water moves from high to low concentration. 18. Eukaryotic cells are found in: A) All organisms. B) Bacteria and blue green algae. C) All organisms expect bacteria and blue green algae. D) None of these. Show Answer Correct Answer: C) All organisms expect bacteria and blue green algae. 19. This organelle functions for lipid synthesis. A) Smooth ER. B) Rough ER. C) Lysosomes. D) Ribosomes. Show Answer Correct Answer: A) Smooth ER. 20. The man who discovered and named the "cell": A) Schleiden. B) Schwann. C) Hooke. D) None of the above. Show Answer Correct Answer: C) Hooke. 21. Assertion (A):The smooth endoplasmic reticulum stores calcium ions in muscle cells. Reason (R):Calcium ions are necessary for muscle contraction. 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. 22. Cells reproduce to form new cells. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 23. A gel like fluid that takes up most of the space inside the cell. The organelles are found scattered throughout it. A) Chloroplasts. B) Cell Wall. C) Cell Membrane. D) Cytoplasm. Show Answer Correct Answer: D) Cytoplasm. 24. When a cell does the exocytosis process, it uses the membrane to ..... A) Take in substances in to the cell. B) Release substances outside of the cell. C) Stay balanced and healthy. D) Maintain PH levels. Show Answer Correct Answer: B) Release substances outside of the cell. 25. Human cheek cell stained in methylene blue and mounted in glycerine were observed under a compound microscope. The components of cell which would be seen are A) Cell wall, cytoplasm, nucleus. B) Plasma membrane, cytoplasm, nucleus. C) Plasma membrane, cytoplasm, nucleus, mitochondria. D) Plasma membrane, nucleus, mitochondria lysosomes. Show Answer Correct Answer: B) Plasma membrane, cytoplasm, 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