This quiz works best with JavaScript enabled. Home > Cbse > Class 8 > Science > Cell Structure And Functions > Class 8 Science Chapter 8 Cell Structure And Functions – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 15 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Explain how the cell theory has evolved over time. A) It has been modified as new discoveries were made. B) It was developed by a single scientist. C) It was only relevant in the 19th century. D) It has remained unchanged since its inception. Show Answer Correct Answer: A) It has been modified as new discoveries were made. 2. The smallest cell is ..... to ..... micrometer A) 00.1, 00.13. B) 0.1, 0.5. C) All the above. D) None of the above. Show Answer Correct Answer: B) 0.1, 0.5. 3. Substance produced by ribosomes. A) MITOCHONDRION. B) PROTEIN. C) ROUGH. D) SMOOTH. Show Answer Correct Answer: B) PROTEIN. 4. Nuclear membrane. allows materials to go into and out of the nucleus through the nuclear pores. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 5. Which of the following cell organelle has genetic material and helps to control several function within the cell? A) Ribosome. B) Mitochondrion. C) Nucleus. D) Lysosome. Show Answer Correct Answer: C) Nucleus. 6. A tadepole's tail is gradually broken-down during metamorphosis into an adult frog. Which organelle increase in the cells of the tail at that time? A) Lysosomes. B) Endoplasmic reticulum. C) Golgi complex. D) Centriole. Show Answer Correct Answer: A) Lysosomes. 7. Which structure makes proteins? A) Lysosome. B) Nucleus. C) Mitochondria. D) Ribosome. Show Answer Correct Answer: D) Ribosome. 8. Which of the following is the correct order of levels of biological organization from simplest to most complex? A) Tissue, cell, organ, organ system, organism. B) Cell, organ, tissue, organ system, organism. C) Cell, tissue, organ, organ system, organism. D) Organ, tissue, cell, organ system, organism. Show Answer Correct Answer: C) Cell, tissue, organ, organ system, organism. 9. Choose The Correct Statement With Respect To Unicellular Organisms: A) In unicellular organisms, tissues work in co-ordination to perform different functions. B) Unicellular organisms do not require food. C) Unicellular organisms respire and reproduce. D) All unicellular organisms move by cilia. Show Answer Correct Answer: C) Unicellular organisms respire and reproduce. 10. "Powerhouse" or "Energy producer"; makes ATP through cell respiration A) Ribosome. B) Vacuole. C) Vesicle. D) Mitochondria. Show Answer Correct Answer: D) Mitochondria. 11. What do the parts A, B and C represent? A) Phosphate. B) Sugar. C) Nitrogen bases. D) None of the above. Show Answer Correct Answer: A) Phosphate. 12. Cells present in living organism differ in A) Numbers. B) Shape. C) Size. D) All of these. Show Answer Correct Answer: D) All of these. 13. What is the main function of the mitochondrion? A) Protein synthesis. B) Cellular digestion. C) Lipid synthesis. D) Energy production. Show Answer Correct Answer: D) Energy production. 14. Which organelle is responsible for photosynthesis? A) Mitochondria. B) Chloroplasts. C) Ribosomes. D) Golgi Body. Show Answer Correct Answer: B) Chloroplasts. 15. ..... organelle is more active in the germinating seeds, the enzymes of which convert stored fats into carbohydrates. A) Glyoxisomes. B) Lysosomes. C) Leucoplast. D) Golgi bodies. Show Answer Correct Answer: A) Glyoxisomes. 16. Network of protein filaments in a eukaryotic cell that gives the cell its shape and internal organization and is involved in movement A) Ribosome. B) Endoplasmic reticulum. C) Cytoskeleton. D) Golgi apparatus. Show Answer Correct Answer: C) Cytoskeleton. 17. Which of the following is NOT a premise of cell theory? A) All cells arise from other cells. B) All living cells require water for survival. C) All living things are only composed of cells. D) Cell is a functional unit of living things. Show Answer Correct Answer: B) All living cells require water for survival. 18. Animal cell has a rectangular or definite shape. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 19. Stores carbohydrate in the form of glycogen. A) Animal cells. B) Plant cells. C) All the above. D) None of the above. Show Answer Correct Answer: A) Animal cells. 20. Gasoline is to a car as glucose is to a A) Mitochondrion. B) Nucleus. C) Vacuole. D) Cell wall. Show Answer Correct Answer: A) Mitochondrion. 21. Assertion (A):The nucleolus is found inside the nucleus. Reason (R):The nucleolus is responsible for ribosome synthesis. 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. Which process results in the formation of gametes? A) Budding. B) Meiosis. C) Binary fission. D) Mitosis. Show Answer Correct Answer: B) Meiosis. 23. Assertion (A):The Golgi apparatus forms lysosomes. Reason (R):Lysosomes contain digestive enzymes for breaking down cellular waste. 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. 24. In plant cell cell wall is an ..... layer to cell membrane A) Inner. B) Beside. C) Outer. D) None of the above. Show Answer Correct Answer: C) Outer. 25. Explain why ribosomes are essential for cell function. A) They transport materials within the cell. B) They are involved in the synthesis of proteins, which are crucial for cell function. C) They store energy for the cell. D) They provide structural support to the cell. Show Answer Correct Answer: B) They are involved in the synthesis of proteins, which are crucial for cell function. 26. What is the purpose of the nucleus? A) It processes light energy and water to make sugar and release oxygen. B) It's the powerhouse of the cell that releases energy. C) It's the brain of the cell that directs all cell activity. D) It produces ribosomes. Show Answer Correct Answer: C) It's the brain of the cell that directs all cell activity. 27. A cell includes nucleus, cytoplasm and ..... in animals A) Cell wall. B) Cell membrane. C) Vacuole. D) Chloroplast. Show Answer Correct Answer: B) Cell membrane. 28. What is the molecular basis of physiological processes? A) The structure of DNA. B) The types of organic compounds. C) The cellular organization. D) The energy production. Show Answer Correct Answer: B) The types of organic compounds. 29. The fluid inside of the cell is the cytoplasm. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 30. Explain how the structure of the cell membrane facilitates its function. A) The rigid structure allows for protection. B) The flexible lipid bilayer allows selective permeability. C) The thick wall prevents all substances from entering. D) The solid surface allows for easy transport. Show Answer Correct Answer: B) The flexible lipid bilayer allows selective permeability. 31. This organelle is in all eukaryotic cells. It is the control center of the cell because it holds the DNA. A) Nucleus. B) Chloroplasts. C) Mitochondria. D) Ribosomes. Show Answer Correct Answer: A) Nucleus. 32. Which organelle is responsible for energy production in the cell? A) Ribosome. B) Mitochondria. C) Nucleus. D) Golgi apparatus. Show Answer Correct Answer: B) Mitochondria. 33. SC.6.L.14.3The process in plant cells that converts energy from the sun into energy stored in food is ..... A) Photosynthesis. B) Cellular respiration. C) Homeostasis. D) Cell division. Show Answer Correct Answer: A) Photosynthesis. 34. Assertion (A):Mitochondria are called the "powerhouse of the cell." Reason (R):They are responsible for producing ATP through cellular respiration. 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. 35. Which of the following is NOT found in prokaryotes? A) Cytoplasm. B) A cell membrane. C) A nucleus. D) DNA or the genetic material. Show Answer Correct Answer: C) A nucleus. 36. Cell organelle filled with enzymes needed to break down certain materials in the cell A) Lysosome. B) Organelle. C) Ribosome. D) Vacuole. Show Answer Correct Answer: A) Lysosome. 37. I produce ribosomes and can be found in the nucleous. A) Chloroplasts. B) Nucleolus. C) Chromatin. D) Lysosomes. Show Answer Correct Answer: B) Nucleolus. 38. What cell feature is responsible for powering the cell? (Power house!) A) Endoplasmic reticulum. B) Golgi body. C) Mitochondria. D) None of the above. Show Answer Correct Answer: C) Mitochondria. 39. Which organelle is called the "suicide bag" of the cell? A) Plastids. B) Lysosomes. C) Mitochondria. D) Golgi apparatus. Show Answer Correct Answer: B) Lysosomes. 40. The control unit of cell is ..... A) Nucleus. B) Cell wall. C) Cytoplasm. D) None of the above. Show Answer Correct Answer: A) Nucleus. 41. HE COINED THE TERM CELLS A) ROBERT HOOKE (1665). B) ROBERT BROWN (1831). C) THEODOR SCHWANN (1839). D) ANTON VAN LEEUWENHOEK (1676). Show Answer Correct Answer: A) ROBERT HOOKE (1665). 42. Assertion (A):The nucleus is the control center of the cell. Reason (R):It regulates gene expression and cell division. 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. 43. An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the dependent variable? A) Color of the plant's leaves. B) Type of plant. C) Plant growth. D) Water, apple juice, milk. Show Answer Correct Answer: C) Plant growth. 44. Which of the following is a difference between prokaryotic and eukaryotic cells? A) Only prokaryotes have mitochondria. B) Only eukaryotes have a cell membrane. C) Only eukaryotes have a nucleus. D) Only prokaryotes have ribosomes. Show Answer Correct Answer: C) Only eukaryotes have a nucleus. 45. Given a diagram of a cell, how would you identify the nucleus? A) By finding the structure that stores water. B) By finding the structure that supports the cellTagsVA.LS.2.b. C) By finding the structure that contains genetic material. D) By finding the structure that produces energy. Show Answer Correct Answer: C) By finding the structure that contains genetic material. 46. Are made up of small particles of RNA and protein. Ribosomes produce proteins in eukaryotic and prokaryotic cells. A) Nucleus. B) Chloroplasts. C) Ribosomes. D) Cytoskeleton. Show Answer Correct Answer: C) Ribosomes. 47. This is known as living substance of cell A) Protoplasm. B) Chrosomes. C) Lysomes. D) Golgi. Show Answer Correct Answer: A) Protoplasm. 48. THE FIRST ORGANIC COMPOUNDS WERE TRANSPORTS TO THE EARTH FROM SPACE ARRIVING ON METEORS A) HYDROTHERMAL VENTS. B) TIDAL POOLS. C) PANSPERMIA HYPOTHESIS. D) None of the above. Show Answer Correct Answer: C) PANSPERMIA HYPOTHESIS. 49. Bacteria cells are this type of cell. A) Eukaryote. B) Prokaryote. C) All the above. D) None of the above. Show Answer Correct Answer: B) Prokaryote. 50. Vacclue are present in A) Plants cell. B) Animal cell. C) Both of these. D) None of these. Show Answer Correct Answer: C) Both of these. 51. Who is the largest cell? A) Hen egg. B) Tortoise egg. C) Anaconda egg. D) Ostrich egg. Show Answer Correct Answer: D) Ostrich egg. 52. Sophia is packing small items into tiny bubbles or sacs to store and transport them safely. What are these small bubbles or sacs called? A) Nucleus. B) Cytoplasm. C) Vesicle. D) Organelle. Show Answer Correct Answer: C) Vesicle. 53. What is the role of meiosis in organisms? A) To produce gametes. B) To repair damaged cells. C) To increase cell size. D) To produce identical cells. Show Answer Correct Answer: A) To produce gametes. 54. Ziyah is making a model of a living plant cell. The following objects are available to her for her model:a cloth bag a wire cage a solar panel a battery with wires a zippered sandwich bagZiyah wants to represent the function of different plant cell parts by using objects that have functions similar to the cell's parts. Which object would represent the cell membrane? A) Cloth bag. B) Solar panel. C) Battery with wires. D) Zippered sandwich bag. Show Answer Correct Answer: A) Cloth bag. 55. Cellular Respiration A) Converts glucose into ATP. B) Breaks down proteins into amino acids. C) Transforms fats into carbohydrates. D) Produces oxygen from carbon dioxide. Show Answer Correct Answer: A) Converts glucose into ATP. 56. An organism that cannot make its own food and gets food by consuming other living things A) Producer. B) Heterotroph. C) Autotroph. D) Extremophobe. Show Answer Correct Answer: B) Heterotroph. 57. Which of the following is present in all eukaryotic cells? A) Cell wall. B) Diploid nucleus. C) Flagellum. D) Membrane bounded organelles. Show Answer Correct Answer: D) Membrane bounded organelles. 58. A cell without organized nucleus is called ..... A) Eukaryotic cell. B) Prokaryotic cell. C) Virus. D) None of the above. Show Answer Correct Answer: B) Prokaryotic cell. 59. Tiny cell structures that carry out specific functions within the cell. A) Organelles. B) Animalicules. C) Membranes. D) Nucleus. Show Answer Correct Answer: A) Organelles. 60. Little organs that carry out specialized functions. A) LYSOSOMES. B) NUCLEUS. C) ROUGH. D) ORGANELLES. Show Answer Correct Answer: D) ORGANELLES. ← PreviousNext →Related QuizzesScience QuizzesClass 8 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books