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 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 6 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. What is the primary focus of biology? A) Study of chemical reactions. B) Study of non-living organisms. C) Study of living organisms. D) Study of physical laws. Show Answer Correct Answer: C) Study of living organisms. 3. 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. 4. Which organelle is responsible for breaking down cellular waste and debris? A) Vacuole. B) Endoplasmic reticulum. C) Golgi apparatus. D) Lysosome. Show Answer Correct Answer: D) Lysosome. 5. 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. 6. Which phase of mitosis involves the chromosomes lining up at the center of the cell? A) Telophase. B) Metaphase. C) Anaphase. D) Prophase. Show Answer Correct Answer: B) Metaphase. 7. 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. 8. Which organelle is responsible for storing water, nutrients, and waste in a cell? A) Golgi apparatus. B) Mitochondria. C) Endoplasmic reticulum. D) Vacuole. Show Answer Correct Answer: D) Vacuole. 9. 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 provides structural support. B) It regulates molecular transport. C) It synthesizes proteins. D) It breaks down molecules. Show Answer Correct Answer: A) It provides structural support. 10. Which organelle is known as the "powerhouse of the cell" because it produces energy? A) Mitochondria. B) Chloroplast. C) Nucleus. D) Ribosome. Show Answer Correct Answer: A) Mitochondria. 11. 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. 12. 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. 13. The brain or "control center" of the cell. A) Cytoplasm. B) Mitochondria. C) Nucleus. D) Cell Membrane. Show Answer Correct Answer: C) Nucleus. 14. 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. 15. Bacteria and blue-green algae are called? A) Prokaryote. B) Nucleoplasm. C) Prokaryotes. D) Nucleus. Show Answer Correct Answer: C) Prokaryotes. 16. 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. 17. Where is the genetic material found in the cell? A) Nucleolus. B) Cytoplasm. C) Chloroplast. D) Nucleus. Show Answer Correct Answer: D) Nucleus. 18. Which microorganism is used to make bread rise? A) Virus. B) Mold. C) Bacteria. D) Yeast. Show Answer Correct Answer: D) Yeast. 19. Process by which organisms maintain a relatively stable internal environment A) Organelle. B) Homeostasis. C) Cytoplasm. D) Chromatin. Show Answer Correct Answer: B) Homeostasis. 20. Where is ground tissue typically found in plants? A) In the vascular bundles. B) In the outer layer of the plant (epidermis). C) In the leaves, stems, and roots (between the epidermis and vascular tissues). D) In the root tips. Show Answer Correct Answer: C) In the leaves, stems, and roots (between the epidermis and vascular tissues). 21. Differentiate between prokaryotic and eukaryotic cells. A) Prokaryotic cells have a nucleus and membrane-bound organelles, while eukaryotic cells do not. B) Prokaryotic cells do not have a nucleus or membrane-bound organelles, while eukaryotic cells have a nucleus and membrane-bound organelles. C) Prokaryotic cells are larger in size compared to eukaryotic cells. D) Eukaryotic cells are only found in unicellular organisms. Show Answer Correct Answer: B) Prokaryotic cells do not have a nucleus or membrane-bound organelles, while eukaryotic cells have a nucleus and membrane-bound organelles. 22. Which organelle captures light energy and converts it into chemical energy? A) Ribosome. B) Chloroplast. C) Mitochondria. D) Lysosome. Show Answer Correct Answer: B) Chloroplast. 23. Which organelle contains digestive enzymes to break down waste materials? A) Chloroplast. B) Golgi apparatus. C) Lysosome. D) Endoplasmic reticulum. Show Answer Correct Answer: C) Lysosome. 24. Jelly-like substance present between the cell membrane and the nucleus is ..... A) A) Vacuole. B) C) Cytoplasm. C) Nucleoplasm. D) None of the above. Show Answer Correct Answer: B) C) Cytoplasm. 25. How are chloroplasts and mitochondria similar? They both ..... A) Are found in prokaryotes. B) Are found in animal cells. C) Produce energy products. D) Destroy cell products. Show Answer Correct Answer: C) Produce energy products. 26. What did Robert Hooke observe under the microscope? A) Tiny chambers he called cells. B) Red blood cells. C) Animalcules. D) Nucleus. Show Answer Correct Answer: A) Tiny chambers he called cells. 27. Cells which lack nuclear membrane are A) Eukaryotic cells. B) Single cells. C) Prokaryotic cells. D) Multi cells. Show Answer Correct Answer: C) Prokaryotic cells. 28. Why do plant cells contain cell wall but the animal cells do not? A) To provide Rigidity. B) To prevent it from moving or breaking easily. C) Both (A) and (B). D) None of these. Show Answer Correct Answer: C) Both (A) and (B). 29. Keeps cell contents separate from external environment. A) CYTOPLASM. B) ENDOPLASMIC RETICULUM. C) MEMBRANE. D) RIBOSOMES. Show Answer Correct Answer: C) MEMBRANE. 30. This organelle turns the light energy into a simple sugar. A) Mitochondria. B) ER. C) Chloroplast. D) Nucleus. Show Answer Correct Answer: C) Chloroplast. 31. Which structure surrounds all cells and controls what enters and leaves the cell? A) Cell wall. B) Nucleus. C) Cell membrane. D) Cytoplasm. Show Answer Correct Answer: C) Cell membrane. 32. Which of the following is a stiff structure outside the cell membrane that is only found in bacteria and plant cells? A) Cell wall. B) Mitochondria. C) Golgi apparatus. D) Lysosomes. Show Answer Correct Answer: A) Cell wall. 33. Female Anopheles mosqquito is the carrier of A) Malaria. B) Dengue. C) Cholera. D) None of the above. Show Answer Correct Answer: A) Malaria. 34. The rough endoplasmic reticulum is an extension of which of these membranes? A) Cell membrane. B) Outer nuclear membrane. C) Inner nuclear membrane. D) None of the above. Show Answer Correct Answer: B) Outer nuclear membrane. 35. Which of the following is a prokaryote? A) Bacteria. B) Fungi. C) Animal. D) Plant. Show Answer Correct Answer: A) Bacteria. 36. The protoplasm includes A) Cytoplasm. B) Nucleus. C) Both. D) None. Show Answer Correct Answer: C) Both. 37. Which organelle is responsible for photosynthesis in plant cells? A) Mitochondria. B) Ribosome. C) Chloroplast. D) Lysosome. Show Answer Correct Answer: C) Chloroplast. 38. A portion of the cell outside the nucleus A) Prokaryote. B) Chromatin. C) Phagocytosis. D) Cytoplasm. Show Answer Correct Answer: D) Cytoplasm. 39. Which organelle packages and modifies proteins for transport within or outside the cell? A) Lysosome. B) Mitochondrion. C) Chloroplast. D) Golgi apparatus. Show Answer Correct Answer: D) Golgi apparatus. 40. What is a characteristic of active transport? A) Not using energy. B) Not breaking down. C) Building protein. D) Using energy. Show Answer Correct Answer: D) Using energy. 41. Maya is building a model of a plant cell for her science project. She wants to make sure the model has the part that gives plant cells shape and protection. Which part should she include? A) Nucleus. B) Golgi bodies. C) Ribosomes. D) Cell wall. E) Endoplasmic Reticulum. Show Answer Correct Answer: D) Cell wall. 42. In a plant cell, a stiff wall surrounds the membrane, giving the cell a rigid, boxlike shape. A) Cell membrane. B) Cell. C) Ribosome. D) Cell wall. Show Answer Correct Answer: D) Cell wall. 43. Storage of materials A) Cell Wall. B) Nucleus. C) Vacuole. D) Chloroplasts. Show Answer Correct Answer: C) Vacuole. 44. Within eukaryotic cells, there is an intricate network of ..... with unique functions. A) Molecules. B) Organelles. C) Tissues. D) Atoms. Show Answer Correct Answer: B) Organelles. 45. Which type of cell has no membrane-bound nucleus? A) Eukaryotic plant cell. B) Eukaryotic animal cell. C) Prokaryotic cell. D) None of the above. Show Answer Correct Answer: C) Prokaryotic cell. 46. What is the fundamental unit of life A) Cell. B) Cell organelles. C) Chloroplast. D) Mitochondria. Show Answer Correct Answer: A) Cell. 47. Flexible double-layered sheet that makes up the cell membrane and forms a barrier between the cell and its surroundings A) Chloroplast. B) Organelle. C) Lipid Bilayer. D) Mitochondrion. Show Answer Correct Answer: C) Lipid Bilayer. 48. In what part of the plant cell does the process of photosynthesis take place? A) Nucleus. B) Vacuoles. C) Mitochondria. D) Chloroplasts. Show Answer Correct Answer: D) Chloroplasts. 49. What are Vesicles? A) Store materials, transport material. B) Break down material. C) Processes material. D) Transport material. Show Answer Correct Answer: A) Store materials, transport material. 50. Plants are multicellular, which means A) They are made of many cells. B) They are made of one cell. C) All the above. D) None of the above. Show Answer Correct Answer: A) They are made of many cells. 51. Which organelle controls most of the cell's activities? A) Ribosomes. B) Mitochondria. C) Nucleus. D) Lysosomes. Show Answer Correct Answer: C) Nucleus. 52. Plant cell structures that turn energy from sunlight into food. A) Cell Wall. B) Mitochondria. C) Chloroplast. D) Cytoplasm. Show Answer Correct Answer: C) Chloroplast. 53. Chloroplast is found in A) Plant cell only. B) Animal cell only. C) Both of these. D) None of the above. Show Answer Correct Answer: A) Plant cell only. 54. Which of these is part of the cell theory A) Every living thing is made of cells. B) Everything with cells will die. C) All cells have a nucleus. D) Plant cells and Animal cells have some differences. Show Answer Correct Answer: A) Every living thing is made of cells. 55. The fourth, and highest, level of organization in a multicellular organism is? A) Cell specialization. B) An organ system. C) A tissue. D) An organ. Show Answer Correct Answer: B) An organ system. 56. Chromosomes are visible and spindle fibers start to appear A) Telophase. B) Metaphase. C) Anaphase. D) Prophase. Show Answer Correct Answer: D) Prophase. 57. Which of the following do NOT have a cell wall? A) Plant Cells. B) All Bacterial Cells. C) Fungi. D) Animal Cells. Show Answer Correct Answer: D) Animal Cells. 58. Which organelles breaks down organelles that are no longer useful? A) Smooth endoplasmic reticulum. B) Golgi Body. C) Ribosome. D) Lysosome. Show Answer Correct Answer: D) Lysosome. 59. Where in the cell does protein-synthesis take place? A) Mitochondria. B) Ribosome. C) Nucleus. D) Vacuole. E) Cytoplasm. Show Answer Correct Answer: B) Ribosome. 60. What is the large, oval structure that directs all of the cell's activities? A) Chloroplast. B) Nucleus. C) Ribosome. D) Mitochondria. Show Answer Correct Answer: B) Nucleus. ← 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 7Class 8 Science Chapter 8 Cell Structure And Functions Quiz 8Class 8 Science Chapter 8 Cell Structure And Functions Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books