This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 8 Cell Structure And Functions – Quiz 78 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 78 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is osmosis? A) The process of cell division. B) The movement of water molecules through a semi-permeable membrane from a region of low solute concentration to a region of high solute concentration. C) The movement of particles from an area of high concentration to an area of low concentration. D) The process of protein synthesis. Show Answer Correct Answer: B) The movement of water molecules through a semi-permeable membrane from a region of low solute concentration to a region of high solute concentration. 2. What does the rough endoplasmic reticulum (ER) have that the smooth ER does not? A) Mitochondria. B) Ribosomes. C) Chlorophyll. D) Nucleus. Show Answer Correct Answer: B) Ribosomes. 3. In plant cells, which structure is responsible for photosynthesis? A) Chloroplast. B) Mitochondria. C) Cell wall. D) Vacuole. Show Answer Correct Answer: A) Chloroplast. 4. Having only one copy of each chromsome A) Haploid. B) Diploid. C) Triploid. D) Octoploid. Show Answer Correct Answer: A) Haploid. 5. Which of the following is a characteristic of the cell membrane? A) It is rigid and inflexible. B) It is selectively permeable. C) It is composed entirely of DNA. D) It is impermeable to all substances. Show Answer Correct Answer: B) It is selectively permeable. 6. Which level of biological organization comes directly after "cell" ? A) Organ. B) Tissue. C) Organ system. D) Organism. Show Answer Correct Answer: B) Tissue. 7. Which of the following is not a basic component of a cell? A) Cell Membrane. B) Cytoplasm. C) Chlorophyll. D) Nucleus. Show Answer Correct Answer: C) Chlorophyll. 8. Movement of small molecules from higher to lower concentrations and does not always involve a membrane A) Fission. B) Diffusion. C) Osmosis. D) None of the above. Show Answer Correct Answer: B) Diffusion. 9. In which of the following cell, there is a larger vacuole A) Plant Cell. B) Animal Cell. C) All the above. D) None of the above. Show Answer Correct Answer: A) Plant Cell. 10. Cell is a latin word which means: A) Dark room. B) Honey comb. C) Little room. D) Bright room. Show Answer Correct Answer: C) Little room. 11. Rigid outer layer A) Cell wall. B) Cell membrane. C) Cytoplasm. D) Nucleus. Show Answer Correct Answer: A) Cell wall. 12. Which of these structures surround cells? A) Cell wall and nucleus. B) Cell membrane and cell wall. C) Cytoplasm and cytoskeleton. D) Cell membrane and cytoplasm. Show Answer Correct Answer: B) Cell membrane and cell wall. 13. Which cell organelle contains digestive enzymes in acid substance that could destroy the entire cell if ruptured? A) Ribosome. B) Lysosome. C) Chroromosome. D) Centrosome. Show Answer Correct Answer: B) Lysosome. 14. Lysosome is called the of the cell: A) "punching bag". B) "suicide bag". C) "gym bag". D) "eye bag". Show Answer Correct Answer: B) "suicide bag". 15. Powerhouse of the cell, organelle that is the site of ATP ( energy production ) and cellular respiration in plants and animals. A) Nucleus. B) Ribosomes. C) Mitochondria. D) Vacuoles. Show Answer Correct Answer: C) Mitochondria. 16. Which macromolecule is the main component of cell membranes? A) Proteins. B) Nucleic acids. C) Lipids. D) Carbohydrates. Show Answer Correct Answer: C) Lipids. 17. What is the role of ribosomes in a cell? A) To break down waste materials. B) To synthesise proteins. C) To transport substances. D) To store nutrients. Show Answer Correct Answer: B) To synthesise proteins. 18. Abigail is learning about nutrition in her science class. She comes across substances like fats, waxes, and oils in her textbook. What are these substances collectively known as? A) Carbohydrates. B) Proteins. C) Lipids. D) Nucleic Acids. Show Answer Correct Answer: C) Lipids. 19. There are some similarities between prokaryotic and eukaryotic cells. Which of the following structures is found in both prokaryotic and eukaryotic cells? A) Lysosome. B) Mitochondrion. C) Nucleus. D) Cell membrane. Show Answer Correct Answer: D) Cell membrane. 20. What is considered as the brain of the nucleus? A) Nucleolus. B) Neuron. C) Nucleus. D) DNA. Show Answer Correct Answer: A) Nucleolus. 21. -a dark spot can be seen within ..... a small nucleus inside the big nucleus. A) Nucleolus. B) Nucleus. C) All the above. D) None of the above. Show Answer Correct Answer: A) Nucleolus. 22. What is the function of the nucleolus within the nucleus? A) Stores genetic material. B) Synthesizes lipids. C) Produces ribosomal RNA and assembles ribosomes. D) Regulates cell division. Show Answer Correct Answer: C) Produces ribosomal RNA and assembles ribosomes. 23. Cells are not similar in their basic structure and functions but are identical. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. What is connective tissue characterized by? A) Abundance of extracellular components. B) Presence of muscle fibers. C) Ability to conduct impulses. D) Single layer of cells. Show Answer Correct Answer: A) Abundance of extracellular components. 25. A green photosynthetic pigment found in the chloroplasts of plants, algae, and some bacteria A) Chloroplasts. B) Mitochondria. C) Sister chromtids. D) Chlorophyll. Show Answer Correct Answer: D) Chlorophyll. ← 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