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 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 1 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Packages proteins A) Golgi apparatus. B) Ribosome. C) Endoplasmic reticulum. D) Lysosome. Show Answer Correct Answer: A) Golgi apparatus. 2. The basic protein subunit of intermediate filament is: A) Tropomyosin. B) Actin. C) Tubulin. D) Vimentin. Show Answer Correct Answer: D) Vimentin. 3. What is an organ system? A) A group of tissues. B) A single organ. C) A type of muscle tissue. D) A group of organs that work together. Show Answer Correct Answer: D) A group of organs that work together. 4. Assertion (A):The nucleus is absent in mature red blood cells of mammals. Reason (R):This allows more space for hemoglobin and efficient oxygen transport. 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. 5. Olivia is helping her younger sister understand how water is formed while making lemonade. She explains that in a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by A) Polar covalent bonds. B) Hydrogen bonds. C) Nonpolar covalent bonds. D) Van der Waals interactions. E) Ionic bonds. Show Answer Correct Answer: A) Polar covalent bonds. 6. Which of the following structures is responsible for maintaining cell shape and providing support in plant cells? A) Cell membrane. B) Cell wall. C) Nucleus. D) Lysosome. Show Answer Correct Answer: B) Cell wall. 7. A student places a plant cell in a solution with a higher concentration of water than inside the cell. What will most likely happen to the cell? A) The cell will burst immediately. B) The cell will remain the same. C) The cell will swell. D) The cell will shrink. Show Answer Correct Answer: C) The cell will swell. 8. There is more Intercellular space found in this tissue A) Parenchyma. B) Sclerenchyma. C) Collenchyma. D) Epidermis. Show Answer Correct Answer: A) Parenchyma. 9. Which organelle is found mostly in plant cells and lies outside the cell membrane? A) Cell Wall. B) Centriole. C) Golgi Body. D) Lysosome. Show Answer Correct Answer: A) Cell Wall. 10. Which of the following is present only in plants: A) Plasma membrane. B) Cell wall. C) Nucleo membrane. D) Ctyoplasm. Show Answer Correct Answer: B) Cell wall. 11. In eukaryotic cells, chromosomes carrying genetic information are found in the A) Cell Membrane. B) Lysosomes. C) Ribosomes. D) Nucleus. Show Answer Correct Answer: D) Nucleus. 12. Thin, double-layered sheet around the cell A) Cell membrane. B) Cell wall. C) Eukaryote. D) Prokaryote. Show Answer Correct Answer: A) Cell membrane. 13. Which historical event most directly contributed to the development of the cell theory? A) The development of microscopes and higher powered lenses. B) The discovery that DNA is the genetic material. C) The development of theories of natural selection on evolution of organisms. D) The discovery and classification of thousands of species of organisms. Show Answer Correct Answer: A) The development of microscopes and higher powered lenses. 14. Which process allows cells to take in large particles by engulfing them? A) Diffusion. B) Osmosis. C) Endocytosis. D) Exocytosis. Show Answer Correct Answer: C) Endocytosis. 15. What is the primary function of the cell wall in plant cells? A) To regulate the movement of substances in and out of the cell. B) To provide structural support and protection. C) To synthesize proteins. D) To conduct photosynthesis. Show Answer Correct Answer: B) To provide structural support and protection. 16. Process in which the substances are brought into the cell . A) Ingestion. B) Endocytosis. C) Exocytosis. D) Osmosis. Show Answer Correct Answer: B) Endocytosis. 17. What is the primary purpose of cell division in multicellular organisms? A) To produce energy. B) To grow and repair tissues. C) To transport nutrients. D) To eliminate waste. Show Answer Correct Answer: B) To grow and repair tissues. 18. Storage of food, water, wastes, and enzymes. (Mostly water) A) Cytoplasm. B) Vacuole. C) Cell Membrane. D) Mitochondria. Show Answer Correct Answer: B) Vacuole. 19. This organelle takes food and turns it into ENERGY for plant and animal cells. A) Ribosome. B) Chloroplast. C) Lysosome. D) Mitochondria. Show Answer Correct Answer: D) Mitochondria. 20. What is the role of epithelial tissues? A) Support and protect organs. B) Facilitate movement. C) Transmit signals. D) Store energy. Show Answer Correct Answer: A) Support and protect organs. 21. The plant cell structure where photosynthesis takes place is called ..... A) Chloroplast. B) Chlorophyll. C) Vacuole. D) Mitochondria. Show Answer Correct Answer: A) Chloroplast. 22. What is the function of chloroplasts? A) Conducts photosynthesis to produce food for the plant. B) Stores water and nutrients. C) Synthesizes proteins. D) Produces energy through cellular respiration. Show Answer Correct Answer: A) Conducts photosynthesis to produce food for the plant. 23. Sites where ribosomes are made. A) Golgi Apparatus. B) Nucleus. C) RER. D) Nucleolus. Show Answer Correct Answer: D) Nucleolus. 24. Holds materials like water and is very large in a plant cell A) Vacuole. B) Chloroplast. C) Golgi body. D) Nucleus. Show Answer Correct Answer: A) Vacuole. 25. Cells that secrete bone matrix A) Lamellae. B) Osteocyte. C) Osteoblast. D) Canaliculi. Show Answer Correct Answer: C) Osteoblast. 26. Which of the following is a function of the Golgi apparatus? A) Synthesizing proteins. B) Modifying, sorting, and packaging proteins. C) Producing ATP. D) Storing genetic material. Show Answer Correct Answer: B) Modifying, sorting, and packaging proteins. 27. Which organelle contains its own DNA and is involved in energy metabolism? A) Mitochondrion. B) Ribosome. C) Golgi apparatus. D) Endoplasmic reticulum. Show Answer Correct Answer: A) Mitochondrion. 28. Which of the following is NOT a type of plastid? A) Lysosome. B) Leucoplast. C) Chromoplast. D) Chloroplast. Show Answer Correct Answer: A) Lysosome. 29. Powerhouse of the cell A) Nucleus. B) Endoplasmic Reticulum. C) Ribosome. D) Mitochondria. Show Answer Correct Answer: D) Mitochondria. 30. Assertion (A):The nucleus is surrounded by a double membrane called the nuclear envelope. Reason (R):The nuclear envelope controls the movement of substances in and out of the nucleus. 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. 31. These type of tissue are dead A) Parenchyma. B) Sclerenchyma. C) Collenchyma. D) None of the above. Show Answer Correct Answer: B) Sclerenchyma. 32. What type of tissue is characterized by the ability to react to stimuli? A) Muscle tissue. B) Nervous tissue. C) Connective tissue. D) Epithelial tissue. Show Answer Correct Answer: B) Nervous tissue. 33. Synthesize the relationship between the nucleus and DNA in terms of genetic information storage and transmission. A) The nucleus stores lipids, while DNA transmits energy. B) The nucleus houses DNA, which contains the genetic blueprint for the organism, and is responsible for transmitting genetic information during cell division. C) The nucleus and DNA are unrelated in function. D) The nucleus transmits proteins, while DNA stores energy. Show Answer Correct Answer: B) The nucleus houses DNA, which contains the genetic blueprint for the organism, and is responsible for transmitting genetic information during cell division. 34. Glycerine is used to prepare a temporary mount of a tissue due to the following reason A) To colour the specimen. B) To avoid drying up of the specimen quickly. C) To avoid entry of air bubbles. D) None of the above. Show Answer Correct Answer: B) To avoid drying up of the specimen quickly. 35. Which process describes the division of the cell nucleus during cell division? A) Cytokinesis. B) Mitosis. C) Binary fission. D) Meiosis. Show Answer Correct Answer: B) Mitosis. 36. Genes are carried in which of the following components of a cell? A) Cytoplasm. B) Cell Membrane. C) Nuclear Membrane. D) Nucleus. Show Answer Correct Answer: D) Nucleus. 37. Which of the following structures is found in both plant and animal cells? A) Cell wall. B) Chloroplast. C) Mitochondria. D) Large central vacuole. Show Answer Correct Answer: C) Mitochondria. 38. In a biology class, Nora, Mason, and Maya are discussing the main function of ribosomes. What do they agree upon as the primary function of ribosomes? A) Breaking down molecules. B) Synthesizing proteins. C) Regulating molecular transport. D) Generating energy. Show Answer Correct Answer: B) Synthesizing proteins. 39. What two tissues transport materials throughout the entire plant body? A) Sclerenchyma and xylem. B) Phloem and xylem. C) Parenchyma and xylem. D) Sclerenchyma and collenchyma. Show Answer Correct Answer: B) Phloem and xylem. 40. Animal and plant cells are both this type of cell. A) Eukaryote. B) Prokaryote. C) All the above. D) None of the above. Show Answer Correct Answer: A) Eukaryote. 41. Semi-permeable barrier A) Cell membrane. B) Nucleus. C) Cytoplasm. D) Cell wall. Show Answer Correct Answer: A) Cell membrane. 42. The nucleus and the cytoplasm together make up the ..... A) Nuclear Membrane. B) Protoplasm. C) Vacuoles. D) Mitochondria. Show Answer Correct Answer: B) Protoplasm. 43. The rough endoplasmic reticulum and Golgi apparatus work together in eukaryotic cells. What is one way that the rough endoplasmic reticulum assists the Golgi apparatus? A) It breaks down old, damaged macromolecules. B) It determines which protein molecules to synthesize. C) It packages new protein molecules into vesicles. D) It assembles nucleic acids from monomers. Show Answer Correct Answer: B) It determines which protein molecules to synthesize. 44. The outer thick layer in cells of plants are called ..... A) Cell wall. B) Organelles. C) All the above. D) None of the above. Show Answer Correct Answer: A) Cell wall. 45. Which organelle is bigger in the plant cell than in the animal cell? A) Cell membrane. B) Vacuole. C) Cell wall. D) Chloroplast. Show Answer Correct Answer: B) Vacuole. 46. What is the primary role of the cell wall in plant cells? A) To synthesize proteins. B) To provide structural support and protection. C) To store genetic material. D) To produce energy. Show Answer Correct Answer: B) To provide structural support and protection. 47. The jelly-like substance between the nucleus and the cell membrane is called ..... A) Cytoplasm. B) Chromosomes. C) All the above. D) None of the above. Show Answer Correct Answer: A) Cytoplasm. 48. Every organism's live cells consume energy in order tosurvive and expand. A cell with few energy requirements will most likely havea small number of what organelles in the cell? A) Mitochondria. B) Ribosomes. C) ChromosomeS. D) Lysosomes. Show Answer Correct Answer: A) Mitochondria. 49. This organelle acts like a gatekeeper, allowing some materials to pass through it, but not others. Name it. A) Mitochondria. B) Cytoplasm. C) Vacuole. D) Cell Membrane. Show Answer Correct Answer: D) Cell Membrane. 50. Stores and transports materials such as water, salts, proteins and carbohydrates. Many plant cells have a large central vacuole. A) Nucleus. B) Cell wall. C) Lysosomes. D) Vacuoles. Show Answer Correct Answer: D) Vacuoles. 51. Which component is not found in red blood cells? A) Nucleus. B) Enzymes. C) Cell membrane. D) Cytoplasm. Show Answer Correct Answer: A) Nucleus. 52. Which of the following statements best explains why enzymes are essential for metabolism? A) They lower the activation energy required for metabolic reactions. B) They store genetic information. C) They transport molecules across the membrane. D) They provide energy for the cell. Show Answer Correct Answer: A) They lower the activation energy required for metabolic reactions. 53. Rough endoplasmic reticulum A) Does not have ribosomes on the membrane and transports proteins for the cell. B) Does not have ribosomes and makes energy for the cell. C) Does not have ribosomes and makes proteins for the cell. D) Has ribosomes on the membrane and transports proteins for the cell. Show Answer Correct Answer: D) Has ribosomes on the membrane and transports proteins for the cell. 54. What is the significance of analyzing living tissues? A) To focus on genetic information. B) To understand non-living systems. C) To identify elements and compounds. D) To study only physical properties. Show Answer Correct Answer: C) To identify elements and compounds. 55. Compare the function of chloroplasts in plant cells to mitochondria in animal cells. A) Both produce proteins. B) Both are involved in energy production. C) Both store genetic information. D) Both are involved in cell division. Show Answer Correct Answer: B) Both are involved in energy production. 56. Which of the following instruments can be used to observe cells? A) Telescope. B) Periscope. C) Barometer. D) Microscope. Show Answer Correct Answer: D) Microscope. 57. Which organelle controls what goes in and out of the cell? A) Golgi Apparatus. B) Mitochondria. C) Cell Membrane. D) Ribosomes. Show Answer Correct Answer: C) Cell Membrane. 58. Charlotte, Aria, and Olivia are studying cells in their biology class. They are asked to identify the cell part responsible for controlling the activities of a cell. Which cell part should they choose? A) Mitochondria. B) Nucleus. C) Cell membrane. D) Cytoplasm. Show Answer Correct Answer: B) Nucleus. 59. Which organelle stores starch and converts it back to sugar when needed? A) Amyloplast. B) Peroxisome. C) Golgi apparatus. D) Vacuole. Show Answer Correct Answer: A) Amyloplast. 60. List two structures that are components of the endomembrane system. A) Mitochondrion and chloroplast. B) Golgi apparatus and rough endoplasmic reticulum. C) Ribosome and nucleus. D) Peroxisome and vacuole. Show Answer Correct Answer: B) Golgi apparatus and rough endoplasmic reticulum. Next →Related QuizzesScience QuizzesClass 8 QuizzesClass 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books