This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 8 Cell Structure And Functions – Quiz 28 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 28 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The basic unit of life A) Cell wall. B) Nucleus. C) Cell membrane. D) Cell. Show Answer Correct Answer: D) Cell. 2. Where photosynthesis happens in a plant cell A) Cell wall. B) Chloroplast. C) Mitochondria. D) Cytoplasm. Show Answer Correct Answer: B) Chloroplast. 3. What is the relationship between mitochondria and ATP? A) Mitochondria store ATP for future use. B) Mitochondria produce ATP through cellular respiration. C) Mitochondria break down ATP into glucose. D) Mitochondria use ATP to control cell activities. Show Answer Correct Answer: B) Mitochondria produce ATP through cellular respiration. 4. What structure controls what enters and leaves the cell? A) Cell wall. B) Cell membrane. C) Nucleus. D) CytoplasmTagsVA.LS.2.b. Show Answer Correct Answer: B) Cell membrane. 5. Which of the following is the site of metabolism A) Cytoplasm. B) Mitochondria. C) Nucleus. D) Endoplasmic reticulum. Show Answer Correct Answer: A) Cytoplasm. 6. An organism whose cells contain a nucleus A) Eukaryote. B) Chromatin. C) Prokaryote. D) Organelle. Show Answer Correct Answer: A) Eukaryote. 7. What is the basic structural and functional unit of all living things? A) Atom. B) Cell. C) Molecule. D) Human. Show Answer Correct Answer: B) Cell. 8. ER with ribosomes looks ..... under the microscope. A) MITOCHONDRION. B) SMOOTH. C) ROUGH. D) PROTEIN. Show Answer Correct Answer: C) ROUGH. 9. The basic structural and functional unit of all living organism is A) Cell. B) Cell wall. C) Cell membrane. D) Chloroplasts. Show Answer Correct Answer: A) Cell. 10. What are ribosomes? A) Store food. B) Build proteins. C) Store material and transport material. D) Use sunlight to make foo during an photosynthesis. Show Answer Correct Answer: B) Build proteins. 11. The command center of the cell which contains DNA/chromosomes, as well as the nucleolus. A) Ribosomes. B) Cell membrane. C) Nucleus. D) Endoplasmic reticulum. Show Answer Correct Answer: C) Nucleus. 12. Vacuoles (in plants) A) Fluid-filled structures containing enzymes, waste, or water. B) Solid structures that store nutrients and proteins. C) Membrane-bound organelles that produce energy. D) Cellular components responsible for photosynthesis. Show Answer Correct Answer: A) Fluid-filled structures containing enzymes, waste, or water. 13. Muscle cells in our body are A) Spherical. B) Columnar. C) Disc like. D) Spindle shaped. Show Answer Correct Answer: D) Spindle shaped. 14. What are the four main types of tissues in the human body? A) Epithelial, Connective, Muscle, Nervous. B) Epithelial, Connective, Cartilage, Blood. C) Muscle, Nervous, Epithelial, Bone. D) Connective, Muscle, Nervous, Skin. Show Answer Correct Answer: A) Epithelial, Connective, Muscle, Nervous. 15. What is DNA organized into within the cell? A) Organelles. B) Chromosomes. C) Vesicles. D) Proteins. Show Answer Correct Answer: B) Chromosomes. 16. Which of the following statements concerning the secondary active transport of glucose into cells is true? A) The sodium-potassium exchange pump moves NA ions out of cells. B) The concentration of Na ions outside cells is greater than inside cells. C) A carrier molecule moves Na ions and glucose into cells. D) All of the above. Show Answer Correct Answer: D) All of the above. 17. Which of the following is responsible for the synthesis of chromosomes during cell division A) Chromosome. B) Chromoplast. C) Chromatin. D) None of the above. Show Answer Correct Answer: C) Chromatin. 18. Converts chemical energy stored in food molecules into compounds that are more convenient for the cell to use. Mitochondria have their own DNA. A) Cell wall. B) Mitochondria. C) Endoplasmic reticulum. D) Ribosomes. Show Answer Correct Answer: B) Mitochondria. 19. Emma, Elijah, and Anika are studying plants in their biology class. They learned that plants have chloroplasts. What is the primary function of these chloroplasts in the plants they are studying? A) Regulating molecular transport within the plants. B) Synthesizing proteins for the plants. C) Generating energy for the plants. D) Breaking down molecules within the plants. Show Answer Correct Answer: C) Generating energy for the plants. 20. The "brain of the cell, controls the cell, contains DNA (cellular instructions) A) Cell Wall. B) Ribosomes. C) Nucleus. D) Vacuole. Show Answer Correct Answer: C) Nucleus. 21. Which process reduces the chromosome number by half in cells? A) Mitosis. B) Meiosis. C) Cytokinesis. D) Respiration. Show Answer Correct Answer: B) Meiosis. 22. Which of the following organelles will you NOT find in an animal cell? A) Cell membrane. B) Cell wall. C) Golgi Apparatus. D) Cytoplasm. Show Answer Correct Answer: B) Cell wall. 23. A fully grown human has about how many cells? A) 1000 billion. B) 1000 trillion. C) 10000 billion. D) 100 trillion. Show Answer Correct Answer: D) 100 trillion. 24. In which form do animal cells store food A) Glycoprotein. B) Glycogen. C) Fat. D) Carbohydrates. Show Answer Correct Answer: B) Glycogen. 25. What is the function of the cell wall in a plant cell? A) It controls the entry and exit of substances. B) It is the site of cellular respiration. C) It packages and distributes proteins. D) It provides structure and support. Show Answer Correct Answer: D) It provides structure and support. ← 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 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 9Class 8 Science Chapter 8 Cell Structure And Functions Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books