This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 8 Cell Structure And Functions – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 3 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. Which component is not found in red blood cells? A) Cytoplasm. B) Enzymes. C) Nucleus. D) Cell membrane. Show Answer Correct Answer: C) Nucleus. 3. Which of the following statements best explains why enzymes are essential for metabolism? A) They provide energy for the cell. B) They lower the activation energy required for metabolic reactions. C) They store genetic information. D) They transport molecules across the membrane. Show Answer Correct Answer: B) They lower the activation energy required for metabolic reactions. 4. 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. 5. 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. 6. 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. 7. Which of the following instruments can be used to observe cells? A) Barometer. B) Microscope. C) Periscope. D) Telescope. Show Answer Correct Answer: B) Microscope. 8. Which organelle controls what goes in and out of the cell? A) Cell Membrane. B) Golgi Apparatus. C) Mitochondria. D) Ribosomes. Show Answer Correct Answer: A) Cell Membrane. 9. 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) Cell membrane. B) Nucleus. C) Cytoplasm. D) Mitochondria. Show Answer Correct Answer: B) Nucleus. 10. Which organelle stores starch and converts it back to sugar when needed? A) Peroxisome. B) Golgi apparatus. C) Vacuole. D) Amyloplast. Show Answer Correct Answer: D) Amyloplast. 11. 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. 12. Cellular totipotency means A) To undergo mitotic divisions abd form a callus. B) Capacity of living nucleated cells to regenerate any part or whole organism. C) To survive in an artificial growth medium. D) To cause natural death to an organism. Show Answer Correct Answer: B) Capacity of living nucleated cells to regenerate any part or whole organism. 13. Double layered membrane that surrounds the nucleus A) Cell wall. B) Nuclear envelope. C) Nucleolus membrane. D) Nucleoid envelop. Show Answer Correct Answer: B) Nuclear envelope. 14. Which statement best compares eukaryotic cells and prokaryotic cells? A) Eukaryotic cells are smaller than prokaryotic cells. B) Prokaryotic cells are more complex than eukaryotic cells. C) Prokaryotic cells contain a distinct central organelle, and eukaryotic cells do not. D) Eukaryotic cells contain membrane-bound organelles, and prokaryotic cells do not. Show Answer Correct Answer: D) Eukaryotic cells contain membrane-bound organelles, and prokaryotic cells do not. 15. What is the difference between Prokaryotic and Eukaryotic Cell? A) Only Prokaryotes have cytoplasm. B) Only Eukaryotes have Cell Membrane. C) Prokaryotes don't have DNA. D) Eukaryotes have membrane bound cell organelles. Show Answer Correct Answer: D) Eukaryotes have membrane bound cell organelles. 16. A threadlike structure within a cell's nucleus that contains DNA that is passes from one generation to the next. A) Chromosome. B) Spindle fiber. C) Centriole. D) Centomere. Show Answer Correct Answer: A) Chromosome. 17. I am present only in Eukaryotic cells and I house the DNA. Who am I? A) Cytoplasm. B) Nucleus. C) Ribosome. D) Golgi Apparatus. Show Answer Correct Answer: B) Nucleus. 18. Which of the following is not true about the nucleus? A) Powerhouse of the cell. B) Found in both animal and plant cell. C) Controls the activity of the cell. D) It is where DNA is stored. Show Answer Correct Answer: A) Powerhouse of the cell. 19. Chromosomes are found in A) Nucleoplast. B) Nucleolus. C) Nucleus. D) Vacuole. Show Answer Correct Answer: C) Nucleus. 20. Which of the following is NOT one of the 4 organelles that all prokaryotes and eukaryotes have in common? A) Plasma Membrane. B) Genetic Material. C) Ribosomes. D) Cell Wall. Show Answer Correct Answer: D) Cell Wall. 21. Hannah is visiting a science museum with her class. She reads an exhibit that explains a fundamental idea about living things. Which statement is part of the cell theory? A) All living organisms are made of cells. B) All cells contain DNA that they pass on to daughter cells. C) All cells depend on their surroundings to provide energy. D) All cells have a nucleus. Show Answer Correct Answer: A) All living organisms are made of cells. 22. Found in plant cells but not in animal cells and provides protection A) Cell Membrane. B) Nucleus. C) Mitochondria. D) Cell Wall. Show Answer Correct Answer: D) Cell Wall. 23. Which organelle is responsible for producing energy for the cell? A) Nucleus. B) Ribosomes. C) Mitochondria. D) Endoplasmic reticulum. Show Answer Correct Answer: C) Mitochondria. 24. What is another term for "selectively permeable" ? A) Porous. B) Acts like a switch. C) Permanent. D) Semipermeable. Show Answer Correct Answer: D) Semipermeable. 25. This structure is designed to construct new proteins from amino acids. A) Ribosomes. B) Lysosomes. C) Golgi Body. D) Mitochondria. Show Answer Correct Answer: A) Ribosomes. ← PreviousNext →Related 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 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 9Class 8 Science Chapter 8 Cell Structure And Functions Quiz 10Class 8 Science Chapter 8 Cell Structure And Functions Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books