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 32 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 32 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Chromosomes are found in ..... of cells. A) The nucleus. B) The cytoplasm. C) Both the nucleus and the cytoplasm. D) None of the above. Show Answer Correct Answer: A) The nucleus. 2. Rigid Wall outside the plasma membrane A) Cell wall. B) Nucleus. C) Cytoplasm. D) Flagella. Show Answer Correct Answer: A) Cell wall. 3. Avery, Daniel, and Hannah are studying cell biology and discussing the presence of centrioles in cells. They want to know which type of cells have centrioles:plant cells or animal cells? A) Plant cells. B) Both plant and animal cells. C) Animal cells. D) Neither plant nor animal cells. Show Answer Correct Answer: C) Animal cells. 4. What is the name of the jelly-like substance that is inside the cell? A) Cytoplasm. B) Ectoplasm. C) Cytokinesis. D) None of the above. Show Answer Correct Answer: A) Cytoplasm. 5. Chloroplasts (in plants) A) Contain chlorophyll and carry out photosynthesis. B) Are responsible for cellular respiration. C) Store nutrients and water for the plant. D) Help in the absorption of minerals from the soil. Show Answer Correct Answer: A) Contain chlorophyll and carry out photosynthesis. 6. What organelles transport proteins in a cell? A) Golgi apparatus. B) Vesicles. C) Vacuoles. D) Popsicles. Show Answer Correct Answer: B) Vesicles. 7. What is the name of the thread like structure in Nucleus? A) Nucleolus. B) Ribosomes. C) Genes. D) Chromosomes. Show Answer Correct Answer: D) Chromosomes. 8. All plant cells are: A) Prokaryotic. B) Eukaryotic. C) All the above. D) None of the above. Show Answer Correct Answer: B) Eukaryotic. 9. What distinguishes a eukaryotic cell from a prokaryotic cell is the presence of A) A cell wall. B) A nucleus. C) DNA. D) Ribosomes. Show Answer Correct Answer: B) A nucleus. 10. What does the mitochondria do in the cell? A) Produces energy. B) Stores genetic material. C) Transports substances. D) Synthesizes proteins. Show Answer Correct Answer: A) Produces energy. 11. Genetic material can be found in what organelle? A) The golgi complex. B) The mitochondria. C) The chloroplasts. D) The nucleus. Show Answer Correct Answer: D) The nucleus. 12. What structure/s in animals have a similar function as a cell wall? A) Skin. B) Mouth, Nose, and Ears. C) Blood. D) Brain and Nerves. Show Answer Correct Answer: A) Skin. 13. The liquid material in the nucleus is A) Chromosomes. B) Bacteria. C) Nucleolus. D) Nucleoplasm. Show Answer Correct Answer: D) Nucleoplasm. 14. What is the maindifference between prokaryotic and eukaryotic cells? A) Prokaryotic cells have a nucleus and Eukaryotic cells do not. B) Prokaryotic cells are unicellular and Eukaryotic cells are multicellular. C) Prokaryotic cells do not have a nucleus, Eukaryotic cells do have a nucleus. D) Prokaryotic cells are plant cells and Eukaryotic cells are animal cells. Show Answer Correct Answer: C) Prokaryotic cells do not have a nucleus, Eukaryotic cells do have a nucleus. 15. Definition for Prokaryotic cell. A) A tree. B) A rock. C) A cell with a nucleus. D) A cell with no nucleus. Show Answer Correct Answer: D) A cell with no nucleus. 16. What is the significance of the Miller-Urey Experiment? A) It demonstrated that biomolecules can form under ancient Earth-like conditions. B) It created life. C) It showed that cells can arise from non-living matter. D) It proved the theory of evolution. Show Answer Correct Answer: A) It demonstrated that biomolecules can form under ancient Earth-like conditions. 17. What additional structure do plant cells have that provides support? A) Cell wall. B) Cell membrane. C) Nucleus. D) Vacuole. Show Answer Correct Answer: A) Cell wall. 18. Compare the function of the nucleus and the mitochondria in a cell. A) Both store water for the cell. B) The nucleus controls cell activities, while the mitochondria produce energy. C) Both control what enters and leaves the cell. D) The nucleus produces energy, while the mitochondria store genetic information. Show Answer Correct Answer: B) The nucleus controls cell activities, while the mitochondria produce energy. 19. Cells without well-organised nucleus, i.e. lacking nucleur membrane, are called ..... cells. A) Animal. B) Prokaryotic. C) Eukaryotic. D) None of these. Show Answer Correct Answer: B) Prokaryotic. 20. How is the DNA different in prokaryotic and eukaryotic cells? A) Prokaryotic has circular DNA and eukaryotic has double helix DNA. B) Prokaryotic has DNA in the nucleus and eukaryotic has DNA in the cytoplasm. C) Prokaryotic cells do not have DNA, but eukaryotic cells do. D) Prokaryotic cells have double helix DNA and eukaryotic cells have circular DNA. Show Answer Correct Answer: A) Prokaryotic has circular DNA and eukaryotic has double helix DNA. 21. What is the role of the Golgi Body in a cell? A) To synthesize proteins. B) To modify, sort, and package proteins and lipids. C) To break down waste materials. D) To store genetic information. Show Answer Correct Answer: B) To modify, sort, and package proteins and lipids. 22. Which stage of the cell cycle is characterized by the replication of DNA? A) G1 phase. B) S phase. C) M phaseTagsDOK Level 2:Skill/Concept. D) G2 phase. Show Answer Correct Answer: B) S phase. 23. All cells are made up of cell wall. A) Fact. B) No answer. C) Maybe. D) Bluff. Show Answer Correct Answer: D) Bluff. 24. Which of the following correctly describes the role of mRNA in protein synthesis? A) MRNA carries amino acids to the ribosome. B) MRNA provides the template for assembling amino acids into proteins. C) MRNA forms the structure of the ribosome. D) MRNA catalyzes the formation of peptide bondsTagsDOK Level 2:Skill/Concept. Show Answer Correct Answer: B) MRNA provides the template for assembling amino acids into proteins. 25. What do mitochondria generate for the cell? A) Proteins. B) DNA. C) RNA. D) ATP. Show Answer Correct Answer: D) ATP. 26. Cells come only from what? A) Nucleus. B) Fission. C) Budding. D) Existing cells. Show Answer Correct Answer: D) Existing cells. 27. Package and protect DNA structure and sequence. A) CHROMATIN. B) CELLWALL. C) VACUOLES. D) CHLOROPLAST. Show Answer Correct Answer: A) CHROMATIN. 28. Plants get their nutrients from the soil. If the phosphorus was removed from the soil, what macromolecule would be decreased in the plant? A) Protein. B) Carbohydrate. C) Lipid. D) Nucleic AcidTagsSC.912.L.18.1. Show Answer Correct Answer: D) Nucleic AcidTagsSC.912.L.18.1. 29. Suspends organelles in the cell A) Cytoplasm. B) Cell membrane. C) Cell wall. D) Ribosomes. Show Answer Correct Answer: A) Cytoplasm. 30. Which of the following statements about the sodium-potassium pump is true? A) It transports hydrogen ions out of the cell. B) It transports 3 sodium ions out of the cell in exchange for 2 potassium ions. C) It transports water directly out of the cell. D) It transports 2 sodium ions out of the cell in exchange for 3 potassium ions. Show Answer Correct Answer: B) It transports 3 sodium ions out of the cell in exchange for 2 potassium ions. 31. What is diffusion in the context of cell biology? A) The process of cells dividing. B) The process of cells dying. C) The movement of substances from low to high concentration. D) The movement of substances from high to low concentration. Show Answer Correct Answer: D) The movement of substances from high to low concentration. 32. Which of the following is/are example of unicellular organism(s):(I) Amoeba (II) Paramecium (III) White Blood Cell (IV) Hen A) Only I. B) Both I and II. C) I, II and III. D) All of them. Show Answer Correct Answer: B) Both I and II. 33. How does the structure of the cell wall contribute to its function? A) The cell wall is flexible, allowing the cell to change shape easily. B) The cell wall is rigid, providing support and protection to the cell. C) The cell wall is permeable, allowing all substances to pass through. D) The cell wall is made of proteins, aiding in cellular respirationTagsDOK Level 2:Skill/Concept. Show Answer Correct Answer: B) The cell wall is rigid, providing support and protection to the cell. 34. Which structure surrounds the outside of the plasma membrane and provides support to the cell? A) Cytoskeleton. B) Golgi apparatus. C) Cell wall. D) Plasma membrane. Show Answer Correct Answer: C) Cell wall. 35. What is the primary function of the ribosome in a cell? A) Energy production. B) Protein synthesis. C) DNA replication. D) Lipid storage. Show Answer Correct Answer: B) Protein synthesis. 36. Which organelle is known as the powerhouse of the cell because it converts food into energy? A) Chloroplast. B) Nucleus. C) Endoplasmic Reticulum. D) Mitochondria. Show Answer Correct Answer: D) Mitochondria. 37. Rough E.R. contains which small structures? A) Ribosomes. B) Lipids. C) Mitochondria. D) Golgi bodies. Show Answer Correct Answer: A) Ribosomes. 38. What do ribosomes synthesize? A) Proteins from amino acids. B) Starch. C) DNA. D) Lipids. Show Answer Correct Answer: A) Proteins from amino acids. 39. Assertion (A):The cell membrane contains proteins embedded within the phospholipid bilayer. Reason (R):These proteins help in transport and communication across the membrane. 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. 40. Benjamin, Abigail, and Jackson are studying biology and they come across a diagram of a eukaryotic cell. They are trying to understand the function of the nucleus in the cell. Can you help them understand what the nucleus does? A) It is responsible for synthesizing proteins. B) It is the powerhouse of the cell, generating energy. C) It is the storage center, storing genetic information. D) It helps in regulating molecular transport within the cell. Show Answer Correct Answer: C) It is the storage center, storing genetic information. 41. This organelle is responsible for photosynthesis. A) CHROMATIN. B) CELLWALL. C) VACUOLES. D) CHLOROPLAST. Show Answer Correct Answer: D) CHLOROPLAST. 42. Which type of epithelial cells will provide the most protection against abrasion, such as your foot rubbing against the bottom of your shoe? A) Simple columnar. B) Simple squamous. C) Simple cuboidal. D) Stratified squamous. Show Answer Correct Answer: D) Stratified squamous. 43. The projections of varying lengths protruding out of its body. These are called ..... A) Tissues. B) Pesudopodia. C) All the above. D) None of the above. Show Answer Correct Answer: B) Pesudopodia. 44. A cell with organized nucleus is called A) Prokaryotic cell. B) Eukaryotic cell. C) All the above. D) None of the above. Show Answer Correct Answer: B) Eukaryotic cell. 45. THE 3 BASIC COMPONENTS OF A CELL- A) CELL MEMBRANE, CYTOPLASM, NUCLEUS. B) CELL WALL, VACUOLE, NUCLEUS. C) CHROMOSOMES, CYTOPLASM, CELL MEMBRANE. D) NUCLEOLUS, CHROMOSOMES, CYTOPLASM. Show Answer Correct Answer: A) CELL MEMBRANE, CYTOPLASM, NUCLEUS. 46. The fibres of nerve cells may be how many metre long? A) Two metre. B) One metre. C) Three metre. D) One and a half metre. Show Answer Correct Answer: B) One metre. 47. What is the relationship between mitochondria and energy production in cells? A) Mitochondria convert glucose into ATP, the energy currency of the cell. B) Mitochondria produce energy by breaking down proteins. C) Mitochondria store energy in the form of glucose. D) Mitochondria use sunlight to produce energy. Show Answer Correct Answer: A) Mitochondria convert glucose into ATP, the energy currency of the cell. 48. What is the primary role of the cell membrane in animal cells? A) To conduct photosynthesis. B) To regulate the movement of substances in and out of the cell. C) To store genetic material. D) To produce ribosomal RNA. Show Answer Correct Answer: B) To regulate the movement of substances in and out of the cell. 49. Provides structural support and helps with cell shape A) Microtubules. B) Microtubules. C) Mitochondria. D) Vacuole. Show Answer Correct Answer: A) Microtubules. 50. Aria is studying cell biology and comes across the term 'lysosomes'. What is the function of lysosomes in a cell? A) Synthesizing proteins. B) Generating energy. C) Breaking down molecules. D) Regulating molecular transport. Show Answer Correct Answer: C) Breaking down molecules. 51. The correct sequence of mitosis: A) Prophase, anaphase, metaphase, telophase. B) Prophase, metaphase, anaphase, telophase. C) Telophase, metaphase, prophase, anaphase. D) Metaphase, anaphase, telophase, prophase. Show Answer Correct Answer: B) Prophase, metaphase, anaphase, telophase. 52. Which of the following is true about a cell wall? A) Found only in animal cell. B) Found in both animal and plant cell. C) To give a plant cell its shape. D) Fill up the cell. Show Answer Correct Answer: C) To give a plant cell its shape. 53. Organisms which does not have a well defined nucleus A) Multicellular. B) Prokaryotes. C) Unicellular. D) Eukaryotes. Show Answer Correct Answer: B) Prokaryotes. 54. Water moves into a cell when the solution surrounding the cell is A) Isotonic. B) Concentrated. C) Hypotonic. D) Hypertonic. Show Answer Correct Answer: C) Hypotonic. 55. What is the building block (monomer) of proteins? A) Amino acids. B) Nucleotides. C) Monosaccharides. D) Fatty acids. Show Answer Correct Answer: A) Amino acids. 56. A plant cell has what 3 organelles that are different from an animal cell? A) Cell membrane, chlorophyll, cell wall. B) Cell wall, cytoplasm, membrane. C) Chlorophyll, chloroplast, cell membrane. D) Cell wall, chlorophyll, chloroplast. Show Answer Correct Answer: D) Cell wall, chlorophyll, chloroplast. 57. This separates cells from one another A) Cell membrane. B) Tissue. C) All the above. D) None of the above. Show Answer Correct Answer: A) Cell membrane. 58. Full form of RNA A) Ribonucleic acid. B) Ribosome acid. C) Both a and b. D) None of these. Show Answer Correct Answer: A) Ribonucleic acid. 59. What distinguishes cardiac muscle tissue from skeletal muscle tissue? A) Cardiac muscle is voluntary, while skeletal muscle is involuntary. B) Cardiac muscle is striated and contains intercalated discs. C) Skeletal muscle is found in the walls of internal organs. D) Cardiac muscle has no striations. Show Answer Correct Answer: B) Cardiac muscle is striated and contains intercalated discs. 60. Ribosomes are important because A) They make glucose for the cell. B) They make proteins for the cell. C) They control the cell's activities. D) They transport materials throughout the cell. Show Answer Correct Answer: B) They make proteins for the cell. ← 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