This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 8 Cell Structure And Functions – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 13 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. I provide the cell with protection and controls what comes in and out of the cell. A) Nucleus. B) Cell wall. C) Cell membrane. D) Mitochondria. Show Answer Correct Answer: C) Cell membrane. 2. A student is given a diagram of a cell and asked to identify the organelle responsible for storing water, nutrients, and waste. Which organelle should the student select? A) Nucleus. B) Vacuole. C) Mitochondria. D) Ribosome. Show Answer Correct Answer: B) Vacuole. 3. How does the nucleus contribute to the function of a cell? A) It provides structural support. B) It regulates the cell's activities by controlling gene expression. C) It transports proteins. D) It breaks down waste materials. Show Answer Correct Answer: B) It regulates the cell's activities by controlling gene expression. 4. Where are proteins made? A) Golgi body. B) Mitoichondria. C) Chromosomes. D) Ribosomes. Show Answer Correct Answer: D) Ribosomes. 5. Cells were first observed under a microscope by A) Theodor Schwann. B) Rudolf Virchow. C) Robert Hooke. D) Anton van Leeuwenhoek. Show Answer Correct Answer: C) Robert Hooke. 6. Empty structure in the Cytoplasm? A) Membrane. B) Organelle. C) Vacuole. D) Plastids. Show Answer Correct Answer: C) Vacuole. 7. Which device scientists use to study cells? A) Low magnification microscopes. B) High magnification microscopes. C) Microscopes. D) Magnification microscopes. Show Answer Correct Answer: B) High magnification microscopes. 8. What is the function of the endoplasmic reticulum in a cell? A) Cell division and replication. B) Waste elimination and excretion. C) Energy production and storage. D) Protein and lipid synthesis, and transportation of molecules. Show Answer Correct Answer: D) Protein and lipid synthesis, and transportation of molecules. 9. What is the primary focus of biology? A) Study of chemical reactions. B) Study of living organisms. C) Study of physical laws. D) Study of non-living organisms. Show Answer Correct Answer: B) Study of living organisms. 10. What is the function of nucleus? A) Structure that organizes motion of chromosomes. B) Structure that contains DNA and directs the cell. C) Membrane that surrounds and protects the cell. D) Stack of membranes that packages chemicals. Show Answer Correct Answer: B) Structure that contains DNA and directs the cell. 11. Which organelle is responsible for breaking down cellular waste and debris? A) Golgi apparatus. B) Vacuole. C) Lysosome. D) Endoplasmic reticulum. Show Answer Correct Answer: C) Lysosome. 12. Assertion (A):Smooth endoplasmic reticulum (SER) is involved in lipid synthesis. Reason (R):SER lacks ribosomes on its surface. 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. 13. Which phase of mitosis involves the chromosomes lining up at the center of the cell? A) Prophase. B) Metaphase. C) Anaphase. D) Telophase. Show Answer Correct Answer: B) Metaphase. 14. THE SIZE OF THE SMALLEST CELL IS A) 2 M TO 7 M. B) 1.1 MICROMETER TO 1.5 MICROMETER. C) 2 TO 4 CM. D) 0.1 TO 0.5 MICROCENTIMETER. E) NONE OF THESE. Show Answer Correct Answer: E) NONE OF THESE. 15. Which organelle is responsible for storing water, nutrients, and waste in a cell? A) Vacuole. B) Endoplasmic reticulum. C) Golgi apparatus. D) Mitochondria. Show Answer Correct Answer: A) Vacuole. 16. Priya is observing a plant cell under a microscope in her biology class. She is curious about the function of the cell wall she sees. What does the cell wall do in plant cells? A) It regulates molecular transport. B) It synthesizes proteins. C) It provides structural support. D) It breaks down molecules. Show Answer Correct Answer: C) It provides structural support. 17. Which organelle is known as the "powerhouse of the cell" because it produces energy? A) Nucleus. B) Mitochondria. C) Ribosome. D) Chloroplast. Show Answer Correct Answer: B) Mitochondria. 18. What is the function of the vacuole in plant cells? A) Synthesize proteins. B) Help in photosynthesis. C) Store water, maintain turgor pressure, store nutrients and waste products. D) Regulate cell division. Show Answer Correct Answer: C) Store water, maintain turgor pressure, store nutrients and waste products. 19. What are Vacuole? A) Store materials. B) Store foods, plant and animals. C) Help protect and support. D) Processes material. Show Answer Correct Answer: B) Store foods, plant and animals. 20. The brain or "control center" of the cell. A) Mitochondria. B) Cell Membrane. C) Cytoplasm. D) Nucleus. Show Answer Correct Answer: D) Nucleus. 21. CELL WAL IS PRESENT IN A) PLANT CEL. B) BACTERIAL CELL. C) NONE OF THESE. D) BOTH A AND B. Show Answer Correct Answer: D) BOTH A AND B. 22. Bacteria and blue-green algae are called? A) Prokaryote. B) Nucleus. C) Nucleoplasm. D) Prokaryotes. Show Answer Correct Answer: D) Prokaryotes. 23. What is the main function of the cell membrane? A) To provide energy to the cell. B) To control what comes in and out of a cell. C) To perform photosynthesis. D) To store genetic information. Show Answer Correct Answer: B) To control what comes in and out of a cell. 24. Where is the genetic material found in the cell? A) Nucleolus. B) Cytoplasm. C) Nucleus. D) Chloroplast. Show Answer Correct Answer: C) Nucleus. 25. Which microorganism is used to make bread rise? A) Yeast. B) Bacteria. C) Virus. D) Mold. Show Answer Correct Answer: A) Yeast. ← 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