This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 8 Cell Structure And Functions – Quiz 75 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 75 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following cell structures contain the highest concentration of RNA A) Centriole. B) Lysosome. C) Chromosome. D) Nucleolus. Show Answer Correct Answer: D) Nucleolus. 2. Which of the following structure is found in all living organisms? A) Cell membrane. B) Nucleus. C) Lysosome. D) Vacuole. Show Answer Correct Answer: A) Cell membrane. 3. Which of the following organelle is least closely associated with the endomembrane system? A) Nuclear envelope. B) Plasma membrane. C) Endoplasmic reticulum. D) Chloroplast. Show Answer Correct Answer: D) Chloroplast. 4. .... Chromosomes carry ..... which transfers characters from parents to offspring. A) Plastid. B) Genes. C) Ribosome. D) None of the above. Show Answer Correct Answer: B) Genes. 5. The boundary of the onion cell is the ..... A) Cell membrane. B) Nucleus. C) All the above. D) None of the above. Show Answer Correct Answer: A) Cell membrane. 6. I'm full of holesflexible and thinI control what gets outAs well as what comes in A) Ribosome. B) Cell Membrane. C) Vacuole. D) None of the above. Show Answer Correct Answer: B) Cell Membrane. 7. Who proposed that some cell organelles were once a type of bacteria that were free-living? A) Theodor Schwann. B) Matthias Schleiden. C) Antonie Van Leeuwenhoek. D) Margulis. Show Answer Correct Answer: D) Margulis. 8. Smooth Endoplasmic Reticulum A) Plants. B) Animals. C) Both. D) None of the above. Show Answer Correct Answer: C) Both. 9. Why don't animal cells have chloroplasts? A) Because animals get their energy by eating plants or other animals. B) Because animal cells have a rigid cell wall. C) Because animal cells do not need to make their own food. D) Because animal cells have a large central vacuole. Show Answer Correct Answer: A) Because animals get their energy by eating plants or other animals. 10. This scientist concluded that animals and, in fact, all living things are made of cells: A) Hooke. B) Leeunwenhoek. C) Schleiden. D) Schwann. Show Answer Correct Answer: D) Schwann. 11. Considering the shapes of bacteria find the incorrect matching A) Spherical shape-Cocci. B) Rod shape-Bacillus. C) Comma shape-Spirillum. D) Helical-Spirochaete. Show Answer Correct Answer: C) Comma shape-Spirillum. 12. Which type of cell does NOT have a nucleus? A) Plant cell. B) Animal cell. C) Prokaryotic cell. D) Eukaryotic cell. Show Answer Correct Answer: C) Prokaryotic cell. 13. Controls cell activities A) Nucleus. B) Mitochondria. C) Ribosome. D) Endoplasmic Reticulum. Show Answer Correct Answer: A) Nucleus. 14. Eukaryotic cells and prokaryotic cells have some parts in common. Which of these pairs of parts would you find in both types of cells? A) Cytoplasm and nucleus. B) Cell membrane and cytoplasm. C) Genetic material and membrane-bound organelles. D) Cell membrane and membrane-bound organelles. Show Answer Correct Answer: B) Cell membrane and cytoplasm. 15. Modifies and packages proteins and sends them to the other parts of the cell A) Rough ER. B) Golgi Apparatus. C) Smooth ER. D) Ribosomes. Show Answer Correct Answer: B) Golgi Apparatus. 16. What is the primary component of the cell membrane? A) Nucleic acids. B) Proteins. C) Phospholipids. D) Carbohydrates. Show Answer Correct Answer: C) Phospholipids. 17. Bacteria is an example of A) Eukaryotic cell. B) Prokaryotic cell. C) Both of the above. D) None of the above. Show Answer Correct Answer: B) Prokaryotic cell. 18. What is the main function of the endoplasmic reticulum? A) Protein and lipid synthesis. B) Energy production. C) DNA replication. D) Cell division. Show Answer Correct Answer: A) Protein and lipid synthesis. 19. Which one is the function of lysosome? A) Generate ATP. B) Destroy worn out organelles. C) Involved in the separation of chromosome. D) Involved in modifying, sorting, transporting proteins and lipids. Show Answer Correct Answer: B) Destroy worn out organelles. 20. Unicellular organism that lacks a nucleus A) Eukaryote. B) Prokaryote. C) Vacuole. D) Lysosome. Show Answer Correct Answer: B) Prokaryote. 21. Discuss the strategic importance of the sodium-potassium pump in maintaining cellular homeostasis. A) It passively transports sodium and potassium ions across the membrane. B) It actively transports sodium out of the cell and potassium into the cell, maintaining electrochemical gradients. C) It passively transports glucose into the cell. D) It actively transports calcium ions into the cell.TagsDOK Level 3:Strategic Thinking. Show Answer Correct Answer: B) It actively transports sodium out of the cell and potassium into the cell, maintaining electrochemical gradients. 22. This organelle spreads from the nucleus throughout most of the cytoplasm. It helps remove harmful substances from a cell. * A) E.R. B) Golgi bodies. C) Cytoplasm. D) Mitochondria. Show Answer Correct Answer: A) E.R. 23. Specialized structures within a cell that perform important cell functions A) Cell. B) Phagocytosis. C) Organelle. D) Prokaryote. Show Answer Correct Answer: C) Organelle. 24. What is the main function of chloroplasts? A) Protein synthesis. B) Photosynthesis. C) Respiration. D) Cell division. Show Answer Correct Answer: B) Photosynthesis. 25. What is the basic, functional and structural unit of life? A) CELL. B) Red blood cell. C) Microorganisms. D) Multicellular organisms. Show Answer Correct Answer: A) CELL. ← 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