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 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 17 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is the correct order of protein synthesis (protein creation) based on DNA instruction? A) Nucleus-ribosome-rough ER-Golgi. B) Golgi-ribosome-rough ER-nucleus. C) Ribosome-nucleus-rough ER-Golgi. D) Nucleus-golgi-rough ER-ribosome. Show Answer Correct Answer: A) Nucleus-ribosome-rough ER-Golgi. 2. Which of the following is NOT the function of smooth endoplasmic reticulum? A) Detoxification of harmful drugs. B) Lipid metabolism. C) Protein synthesis. D) Transmission of impulse. Show Answer Correct Answer: C) Protein synthesis. 3. On a hot day, Avery goes for a run and starts to sweat. Which property of water is most directly responsible for the ability of Avery's sweat to lower their body temperature? A) The release of heat by the formation of hydrogen bonds. B) Water's ability to dissolve molecules in the air. C) Water's high surface tension. D) Water's change in density when it condenses. E) The absorption of heat by the breaking of hydrogen bonds. Show Answer Correct Answer: E) The absorption of heat by the breaking of hydrogen bonds. 4. How does the presence of a cell wall in plant cells influence their interaction with the environment? A) It allows plant cells to move freely. B) It provides rigidity and protection, allowing plants to withstand various environmental conditions. C) It prevents the plant from absorbing sunlight. D) It allows the plant to produce proteins. Show Answer Correct Answer: B) It provides rigidity and protection, allowing plants to withstand various environmental conditions. 5. Assertion (A):The cell membrane contains cholesterol molecules. Reason (R):Cholesterol helps maintain membrane fluidity and stability. 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 of the following is a function of the cell wall in plant cells? A) To control the movement of substances in and out of the cell. B) To provide structural support and protection. C) To store genetic information. D) To produce energy. Show Answer Correct Answer: B) To provide structural support and protection. 7. This organelle protects/holds the DNA A) Nucleus. B) Chloroplasts. C) Mitochondria. D) Nucleolus. Show Answer Correct Answer: A) Nucleus. 8. Cell organelle that stores materials such as water, salts, proteins, and carbohydrates A) Centriole. B) Ribosome. C) Lysosome. D) Vacuole. Show Answer Correct Answer: D) Vacuole. 9. I can be found in plant cells. A) Chloroplast. B) Mitochondria. C) Chloroplast + Mitosis both. D) None of the above. Show Answer Correct Answer: C) Chloroplast + Mitosis both. 10. Single celled organisms are called A) Unicellular. B) Multi-cellular. C) Both of these. D) None of these. Show Answer Correct Answer: A) Unicellular. 11. Which part of the plant cell is responsible for photosynthesis and is only found in plant cells? A) Golgi Bodies. B) Mitochondria. C) Vacuole. D) Chloroplast. Show Answer Correct Answer: D) Chloroplast. 12. Different types of cells come in a great variety of shapes and sizes. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 13. Which organelles are involved in the process called endocytosis? A) Ribosomes. B) Centrioles. C) Vesicles. D) Chloroplasts. Show Answer Correct Answer: C) Vesicles. 14. This structure contains chlorophyll and is where photosynthesis takes place in plant cells. A) Cytoplasm. B) Chloroplast. C) Mitochondria. D) Vacuole. Show Answer Correct Answer: B) Chloroplast. 15. CELL WALL IS PRESENT IN- A) ANIMAL CELLS. B) PLANT CELLS. C) BOTH 1 AND 2. D) NONE OF THESE. Show Answer Correct Answer: B) PLANT CELLS. 16. What is the relationship between lysosomes and vesicles? A) Lysosomes are a type of vesicle. B) Lysosomes produce vesicles. C) Vesicles break down lysosomes. D) Vesicles are a type of lysosome. Show Answer Correct Answer: A) Lysosomes are a type of vesicle. 17. What type of compounds are investigated to understand living organisms? A) Organic compounds. B) Inorganic compounds. C) Radioactive compounds. D) Synthetic compounds. Show Answer Correct Answer: A) Organic compounds. 18. ..... is the scientist who saw small chambers when looking at cork, and named them "cells" . A) Carson. B) Newton. C) Hooke. D) Manning. Show Answer Correct Answer: C) Hooke. 19. I am located in the nucleus-I'm the genetic material of a cell A) Vacuole. B) Cytoplasm. C) Chromosomes/DNA. D) Membrane. Show Answer Correct Answer: C) Chromosomes/DNA. 20. SAY TRUE OR FALSE The jelly-like fluid present between the cell membrane and the nuclear membrane iscalled the Protoplasm A) FALSE. B) TRUE. C) All the above. D) None of the above. Show Answer Correct Answer: A) FALSE. 21. Chromosomes line along the center of the cell A) Metaphase. B) Telophase. C) Prophase. D) Anaphase. Show Answer Correct Answer: A) Metaphase. 22. All of the following serve an important role in determining or maintaining the structure of plant cells. Which of the following are distinct from the others in their composition? A) Microtubules. B) Microfilaments. C) Plant cell walls. D) Intermediate filaments. E) Nuclear lamina. Show Answer Correct Answer: C) Plant cell walls. 23. This small structures break down materials in the cell. A) Cholorplasts. B) Golgi Body. C) Ribosomes. D) Lysosomes. Show Answer Correct Answer: D) Lysosomes. 24. Controls the passage of materials inside and outside of the cell. A) Cellmembrane. B) Cytoplasm. C) Cell wall. D) Endoplasmic reticulum. Show Answer Correct Answer: A) Cellmembrane. 25. During which phase of the cell cycle does DNA replication occur? A) S phase. B) G1 phase. C) G2 phase. D) M phase. Show Answer Correct Answer: A) S phase. 26. Which of the following is a characteristic of Gram negative bacteria" A) Lipid and Lipoprotein content is about 58% which is quite high compared to Gram positive bacteria. B) Thickness of wall is about 20-30 nm. C) Highly sensitive to penicillin. D) Only one layer in wall. Show Answer Correct Answer: A) Lipid and Lipoprotein content is about 58% which is quite high compared to Gram positive bacteria. 27. Which of the following best describes the cytoplasm? A) A rigid structure that provides support. B) A jelly-like substance that holds organelles in place. C) A membrane that controls entry and exit of substances. D) A storage area for nutrients. Show Answer Correct Answer: B) A jelly-like substance that holds organelles in place. 28. What is the function of smooth endoplasmic reticulum (ER)? A) Synthesizes proteins. B) Transports oxygen. C) Removes harmful substances from a cell. D) Stores the genetic material of the cell. Show Answer Correct Answer: C) Removes harmful substances from a cell. 29. Name one example of prokaryotic cell. A) Blue Green Algae. B) Bacteria. C) Plant. D) Both A and B. Show Answer Correct Answer: D) Both A and B. 30. Which cell organelle is green and contains chlorophyll? A) Mitochondria. B) Chloroplasts. C) Vacuole. D) Ribosomes. Show Answer Correct Answer: B) Chloroplasts. 31. Some cells, such as human nerve and muscle cells, contain many more mitochondria than do other cells, such as skin cells. Why do some cells have more mitochondria than others? A) The cells divide more frequently. B) The cells store more nutrients. C) The cells degrade more proteins. D) The cells use more energy. Show Answer Correct Answer: D) The cells use more energy. 32. They contain enzymes that act on food particles. A) Lysosomes. B) Golgi complex,. C) Mitochondria. D) None of the above. Show Answer Correct Answer: A) Lysosomes. 33. Which structure is present in animal cells but usually absent in plant cells? A) Cell wall. B) Chloroplast. C) Centriole. D) Large central vacuole. Show Answer Correct Answer: C) Centriole. 34. Where are cell organelles located? A) Vacuole. B) Cell wall. C) Nucleus. D) Cytoplasm. Show Answer Correct Answer: D) Cytoplasm. 35. Channels in the cell wall that allow the exchange of substances between adjacent cells. A) Peroxisome. B) Plasmodesmata. C) Plasmodesma. D) Vacuole. Show Answer Correct Answer: B) Plasmodesmata. 36. Which of the following can change into an organism? A) Muscle cell. B) Egg cell. C) Blood cell. D) Nerve cell. Show Answer Correct Answer: B) Egg cell. 37. Green coloured plastids are called ..... A) Leucoplasts. B) Chromosomes. C) Chloroplasts. D) Chromoplasts. Show Answer Correct Answer: C) Chloroplasts. 38. Which of the following tissues has dead cells? A) Epithelial tissue. B) Sclerenchyma. C) Parenchyma. D) Collenchyma. Show Answer Correct Answer: B) Sclerenchyma. 39. Find the correct statement related to plasma membrane. A) Molecules are transported across the membrane by active process without using energy. B) Movement of water through the membrane is by osmosis from hypertonic solution towards hypotonic solution. C) Neutral solute molecules may pass through by diffusion along a concentration gradient. D) Plasma membrane has a typical Protein-lipid-protein structure in distinct layers. Show Answer Correct Answer: C) Neutral solute molecules may pass through by diffusion along a concentration gradient. 40. A single-celled organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle . A) Eukaryote. B) Single-celled organism. C) Nucleus. D) Prokaryote. Show Answer Correct Answer: D) Prokaryote. 41. What gives colour to plant cells A) Indigo, woad. B) Plastics. C) Synthetic dyes. D) Plastids. Show Answer Correct Answer: D) Plastids. 42. The folds found inside the mitochondria that give more surface area for energy-releasing processes to take place are referred to as the ..... A) Chromosomes. B) Cytoskeleton. C) Cilia. D) Cristae. Show Answer Correct Answer: D) Cristae. 43. Allows materials to come in and out of the cell A) Cell Wall. B) Cell Membrane. C) Vacuole. D) Mitochondria. Show Answer Correct Answer: B) Cell Membrane. 44. Which of the following organelles produces large amounts of ATP? A) Mitochondria. B) Nucleus. C) Endoplasmic reticulum. D) Ribosomes. Show Answer Correct Answer: A) Mitochondria. 45. Tissues combine to form A) Cells. B) Nucleus. C) Organs. D) Organism. Show Answer Correct Answer: C) Organs. 46. Which of the following is NOT true about lysosomes? A) They are a type of vesicle. B) They help break down and recycle cell parts. C) They are found in both plant and animal cells. D) They are found in animal cells. Show Answer Correct Answer: C) They are found in both plant and animal cells. 47. Why are viruses not considered to be living things? A) They lack DNA. B) Their cell membrane is permeable. C) They lack cells. D) Their cells lack nuclei. Show Answer Correct Answer: C) They lack cells. 48. What is hen's egg shell made up of- A) Calcium (COCa2). B) Calcite (COCa2). C) Calcium (CacO3). D) Calcite (CaCo3). Show Answer Correct Answer: D) Calcite (CaCo3). 49. Where is the genetic material of the cell located? A) Endoplasmic Reticulum. B) Cell Membrane. C) Cytoplasm. D) Nucleus. Show Answer Correct Answer: D) Nucleus. 50. The cell perform functions to stay alive A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 51. What is the function of flagella in a cell? A) To store nutrients. B) To provide structural support. C) To synthesise proteins. D) To aid in cell movement. Show Answer Correct Answer: D) To aid in cell movement. 52. What is the correct sequence of stages in the cell cycle? A) S, G1, G2, M. B) G1, S, G2, M. C) M, G1, S, G2TagsDOK Level 2:Skill/Concept. D) G1, G2, S, M. Show Answer Correct Answer: B) G1, S, G2, M. 53. What surrounds the cytoplasm of all cells and controls what goes in and out of the cell? A) Cell Membrane. B) Cell Wall. C) Cellophane. D) Cellulose. Show Answer Correct Answer: A) Cell Membrane. 54. Which of the following is not a component of both animal and plant cells? A) Nucleus. B) Cell membrane. C) Chloroplasts. D) Cytoplasm. Show Answer Correct Answer: C) Chloroplasts. 55. The function of this organelle is to store water. Large ones are found in plants. A) Lysosome. B) Cytoplasm. C) Vacuole. D) Golgi Body. Show Answer Correct Answer: C) Vacuole. 56. If the ocular is 10x and the objective is 4x, what is the total magnification? A) 40x. B) 6x. C) 14x. D) 2.5x. Show Answer Correct Answer: A) 40x. 57. The cell theory is a result of the work of one very important scientist name Hooke. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 58. Which of the following statement about cell theory in not correct A) All living organisms contain cell. B) All cell does not perform physical and metabolic functions. C) All cells exists from preexisting cells. D) All are correct. Show Answer Correct Answer: B) All cell does not perform physical and metabolic functions. 59. 1. Bacteria and blue green algae are examples of this type of cells A) Prokaryotic cells. B) Eukaryotic cells. C) All the above. D) None of the above. Show Answer Correct Answer: A) Prokaryotic cells. 60. Supports cell shape and movement; made of microfilaments and microtubules. A) Ribosomes. B) Golgi apparatus. C) Cell wall. D) Cytoskeleton. Show Answer Correct Answer: D) Cytoskeleton. ← 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