This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 8 Cell Structure And Functions – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 8 Cell Structure And Functions Quiz 19 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A HEN EGG CAN BE SEEN WITH UNAIDED EYES A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: A) TRUE. 2. This organelle makes proteins. A) Cell membrane. B) Nucleus. C) Ribosome. D) ER. Show Answer Correct Answer: C) Ribosome. 3. This structure is a storage area for the cell. Plants usually have one large one. A) Lysosome. B) Vacuole. C) Ribosome. D) Golgi Body. Show Answer Correct Answer: B) Vacuole. 4. The thread like structure present in the nucleus is called A) Mitochondria. B) Endoplasmic reticulum. C) Chromosome. D) Golgi apparatus. Show Answer Correct Answer: C) Chromosome. 5. What do plant cells have that animal cells do not? A) Phospholipid and bi-layer. B) Chloroplasts and cell walls. C) Mitochondria and flagella. D) Cell wall and cell membrane. Show Answer Correct Answer: B) Chloroplasts and cell walls. 6. Where do chemical reactions occur within a cell? A) Cytoplasm. B) Nucleus. C) Cell membrane. D) Mitochondria. Show Answer Correct Answer: A) Cytoplasm. 7. What is one major structural difference between plant and animal cells? A) Plant cells have a rigid cell wall, while animal cells do not. B) Animal cells have a rigid cell wall, while plant cells do not. C) Both plant and animal cells have a rigid cell wall. D) Neither plant nor animal cells have a rigid cell wall. Show Answer Correct Answer: A) Plant cells have a rigid cell wall, while animal cells do not. 8. A mutation causes the cell membrane to become impermeable to all substances. What would be the most likely consequence for the cell? Justify your answer. A) The cell would function normally. B) The cell would be unable to exchange materials and would die. C) The cell would divide more rapidly. D) The cell would produce more enzymes. Show Answer Correct Answer: B) The cell would be unable to exchange materials and would die. 9. Which organelles are involved with energy conversion? A) Mitochondria and ribosomes. B) Mitochondria and rough ER. C) Mitochondria and chloroplasts. D) Chloroplast and Golgi body. Show Answer Correct Answer: C) Mitochondria and chloroplasts. 10. What is N-linked glycosylation signal? A) Asn-X-Ser and Asn-X-Thr. B) Cys-X-Cys and Cys-X-Ser. C) Ala-X-Ser and Ala-X-Thr. D) Asn-X-Ser and Ala-X-Thr. Show Answer Correct Answer: A) Asn-X-Ser and Asn-X-Thr. 11. Cell Division A) By which a cell divides into two new daughter cells. B) The process of a cell growing larger. C) The method by which cells communicate with each other. D) The stage where a cell prepares for division. Show Answer Correct Answer: A) By which a cell divides into two new daughter cells. 12. Which statement correctly characterizes bound ribosomes? A) Bound ribosomes are enclosed in their own membrane. B) Bound and free ribosomes are structurally different. C) Bound ribosomes generally synthesize membrane proteins and secretory proteins. D) The most common location for bound ribosomes is the cytoplasmic surface of the plasma membrane. E) All of the above. Show Answer Correct Answer: C) Bound ribosomes generally synthesize membrane proteins and secretory proteins. 13. You are made up of ..... A) Plant cells. B) Eukaryotic cells. C) Prokaryotic cells. D) Bacterial cells. Show Answer Correct Answer: B) Eukaryotic cells. 14. What does the cytoskeleton do? A) Microfilaments. B) Microtubules. C) Intermediate fibers. D) Helps the cell move, keep its shape, and organize its parts. Show Answer Correct Answer: D) Helps the cell move, keep its shape, and organize its parts. 15. What is the main difference between a prokaryotic cell and an eukaryotic cell? A) Only prokaryotic cells have vacuoles. B) Eukaryotic cells are smaller than prokaryotic cells. C) Prokaryotic cells have many organelles, each with their own specialized functions. D) Only eukaryotic cells have its genetic material surrounded by a membrane. Show Answer Correct Answer: D) Only eukaryotic cells have its genetic material surrounded by a membrane. 16. The basic unit of structure and function A) Cell. B) Plants. C) Matter. D) None of the above. Show Answer Correct Answer: A) Cell. 17. In many cells, the structure that controls the cell's activities is the A) Cell membrane. B) Organelle. C) Nucleolus. D) Nucleus. Show Answer Correct Answer: D) Nucleus. 18. A scientist observes a cell with a damaged cytoskeleton. Predict and explain the possible effects on the cell's function. A) The cell will be unable to produce proteins. B) The cell may lose its shape and be unable to move properly. C) The cell will stop DNA replication. D) The cell will produce more ribosomes. Show Answer Correct Answer: B) The cell may lose its shape and be unable to move properly. 19. The colourless plastids are called A) Chromoplasts. B) Leucoplast. C) Chloroplast. D) All of these. Show Answer Correct Answer: B) Leucoplast. 20. Which structure is found in plant cells but not in animal cells? A) Nucleus. B) Cell wall. C) Mitochondria. D) Cell membrane. Show Answer Correct Answer: B) Cell wall. 21. What structure are found in plants but not in animals A) Mitochondria. B) Chloroplast. C) Vacuoles. D) Nucleus. Show Answer Correct Answer: B) Chloroplast. 22. It maintains the shape of the plant, protect the cell, and helps regulate the cell's uptake of water. A) Chromosomes. B) Chloroplasts. C) Cell Wall. D) Chromatin. Show Answer Correct Answer: C) Cell Wall. 23. Omnis cellula e cellula means A) Life exists in cell only. B) All living cells arise from pre-existing cells. C) Cell is the functional and structural unit of organisms. D) All living cells are composed of cells. Show Answer Correct Answer: B) All living cells arise from pre-existing cells. 24. Which of the following statements is true for eukaryotic cells? A) They do not have a nuclear membrane. B) They have a well organised nucleus. C) Bacteria is a eukaryotic cell. D) None. Show Answer Correct Answer: B) They have a well organised nucleus. 25. Which of the following is NOT a part of the cell theory? A) All living things are made up of cells. B) Cells are the basic unit of life. C) All cells arise from pre-existing cells. D) All cells have a cell wall. Show Answer Correct Answer: D) All cells have a cell wall. ← 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