This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 8 Cell Structure And Functions – Quiz 45 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 45 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is the exception of cell theory? A) Bacteria. B) Fungi. C) Lichen. D) Virus. Show Answer Correct Answer: D) Virus. 2. Various other components, or ..... , of cells are present in the cytoplasm. A) Organelles. B) Organisms. C) Animals. D) Plants. Show Answer Correct Answer: A) Organelles. 3. The liver is involved in detoxification of many poisons and drugs. Which of the following structures is primarily involved in this process and therefore abundant in liver cells? A) Rough ER. B) Smooth ER. C) Golgi apparatus. D) Nuclear envelope. E) Transport vesicles. Show Answer Correct Answer: B) Smooth ER. 4. Which of the following statements is true about eukaryotic cells? A) They lack membrane-bound organelles. B) They have a true nucleus. C) They are always unicellular. D) They do not have mitochondria. Show Answer Correct Answer: B) They have a true nucleus. 5. Aria, Maya, and Avery are studying for their biology exam. They come across a question about cell organelles. They want to know which organelle is responsible for protein synthesis. Can you help them? A) Mitochondria. B) Nucleus. C) Ribosome. D) Lysosome. Show Answer Correct Answer: C) Ribosome. 6. What is another name for cell membrane? A) Great Wall of China. B) Berlin Wall. C) Plasma Membrane. D) Cell Wall. Show Answer Correct Answer: C) Plasma Membrane. 7. How do vacuoles function in plant cells? A) Vacuoles primarily transport nutrients to other cells. B) Vacuoles are responsible for photosynthesis in plant cells. C) Vacuoles are involved in the production of energy in plant cells. D) Vacuoles function in plant cells by storing substances, maintaining turgor pressure, aiding in cell growth, and breaking down waste. Show Answer Correct Answer: D) Vacuoles function in plant cells by storing substances, maintaining turgor pressure, aiding in cell growth, and breaking down waste. 8. Which organelle is involved in the synthesis of lipids? A) Ribosome. B) Golgi apparatus. C) Mitochondria. D) Endoplasmic reticulum. Show Answer Correct Answer: D) Endoplasmic reticulum. 9. All organisms are made of: A) Organelles. B) Cytoplasm. C) DNA. D) Cells. Show Answer Correct Answer: D) Cells. 10. The process by which vesicles move substances out of the cell is A) Endocytosis. B) Facilitated diffusion. C) Active transport. D) Exocytosis. Show Answer Correct Answer: D) Exocytosis. 11. Heart and the liver, may have thousands of mitochondria, while other cells may have only a few. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. An organism with more than one cell is known as a/an A) Organ system. B) Multicellular organism. C) Unicellular organism. D) None of the above. Show Answer Correct Answer: B) Multicellular organism. 13. Strong layer around the cell membrane that protects the cell A) Cell wall. B) Cell. C) Nucleus. D) Organelle. Show Answer Correct Answer: A) Cell wall. 14. Assertion (A):The cell membrane helps maintain homeostasis. Reason (R):It regulates the entry and exit of substances in the cell. 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. 15. All of the following are part of a prokaryotic cell except: A) DNA. B) A Cell Wall. C) A Plasma Membrane. D) Ribosomes. E) An Endoplasmic Reticulum. Show Answer Correct Answer: E) An Endoplasmic Reticulum. 16. Which of the following is a reactant in cellular respiration? A) Oxygen. B) Carbon dioxide. C) Lactic acid. D) Ethanol. Show Answer Correct Answer: A) Oxygen. 17. What is a key characteristic of connective tissues? A) They have a high density of cells with minimal extracellular matrix. B) They are specialized for movement. C) They have a large amount of extracellular matrix and few cells. D) They line body cavities and organs. Show Answer Correct Answer: C) They have a large amount of extracellular matrix and few cells. 18. What organelle helps with cell digestion? A) Lysosomes. B) Ribosomes. C) Golgi Complex. D) ER. Show Answer Correct Answer: A) Lysosomes. 19. A process that uses vesicles to move liquid (not particulate matter) into cells is A) Diffusion. B) Pinocytosis. C) Phagocytosis. D) Exocytosis. Show Answer Correct Answer: B) Pinocytosis. 20. BIOMOLECULES FIRS AROSE NEAR ..... A THE BOTTOM OF THE OCEAN, WHERE HEA EMANATED FROM THE HOT CORE OF THE EARTH, CATALYZING REACTIONS AND PRODUCING A VARIETY OF ORGANIC COMPOUNDS A) TIDAL POOLS. B) HYDROTHERMAL VENTS. C) PANSPERMIA HYPOTHESIS. D) None of the above. Show Answer Correct Answer: B) HYDROTHERMAL VENTS. 21. Why can't starch and proteins easily enter the cell through the cell membrane? A) Because the cell membrane is impermeable. B) Because they have large molecules. C) Because they have small molecules. D) Because they are not needed by the cell. Show Answer Correct Answer: B) Because they have large molecules. 22. Which phase of the cell cycle immediately follows mitosis? A) S phase. B) G1 phase. C) Prophase. D) G2 phase. Show Answer Correct Answer: B) G1 phase. 23. Which organelle is found only in plant cells and is responsible for photosynthesis? A) Mitochondrion. B) Chloroplast. C) Ribosome. D) Nucleus. Show Answer Correct Answer: B) Chloroplast. 24. What is the basic structural and functional unit of life in all living organisms? A) Tissue. B) Organ. C) Cell. D) Organism. Show Answer Correct Answer: C) Cell. 25. The golgi apparatus is broken down during mitosis and then reformed. Which function would a cell be unable to perform during the time that its Golgi apparatus is broken down? A) Copying genetic material to include in the new cell. B) Forming vesicles to import molecules into the cell. C) Processing and packaging proteins for the cellular export. D) Correcting errors in the process of building a new cell. Show Answer Correct Answer: C) Processing and packaging proteins for the cellular export. ← 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