This quiz works best with JavaScript enabled. Home > Class 9 > Class 9 Science Chapter 5 The Fundamental Unit Of Life – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 9 Science Chapter 5 The Fundamental Unit Of Life Quiz 15 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which structures are found in plant cells, but not in animal cells? A) Cell membranes and mitochondria. B) Vacuoles and cholorplasts. C) Cell walls and cytoplasm. D) Chloroplasts and cell walls. Show Answer Correct Answer: D) Chloroplasts and cell walls. 2. The opening and closing of stomata is due to A) Sunlight. B) Osmosis. C) Plasmolysis. D) Endocytosis. Show Answer Correct Answer: B) Osmosis. 3. Process in which substances or particles move through the cell membrane, protein channel, or protein doorway from high concentration to low concentration without the use of energy A) Diffusion. B) Active Transport. C) Osmosis. D) Passive Transport. Show Answer Correct Answer: D) Passive Transport. 4. The movement of molecules from an area of high concentration to an area of low concentration. A) Osmosis. B) Respiration. C) Diffusion. D) Active Transport. Show Answer Correct Answer: C) Diffusion. 5. Plant cell generally have A) No vacuoles at all. B) All equal sized vacuoles. C) Small but less number of vacuoles. D) Big but less number of vacoules. Show Answer Correct Answer: D) Big but less number of vacoules. 6. Protein Factory of a cell is ..... A) Nucleus. B) Endoplasmic Reticulum. C) Chloroplast. D) Ribosomes. Show Answer Correct Answer: D) Ribosomes. 7. Which sequence correctly traces the path of a protein in the cell? A) Ribosome, Golgi body, rough ER. B) ER, lysosome, Golgi body. C) Ribosome, rough ER, chloroplast. D) Ribosome, rough ER, Golgi body. Show Answer Correct Answer: D) Ribosome, rough ER, Golgi body. 8. Modifies, collects, & packages macromolecules such as proteins. A) Smooth is. B) Ribosome. C) Rough is. D) Golgi apparatus. Show Answer Correct Answer: D) Golgi apparatus. 9. The Golgi apparatus is involved in- A) Packaging proteins into vesicles. B) Altering or modifying proteins. C) Producing lysosomes. D) All of the above. Show Answer Correct Answer: D) All of the above. 10. How do unicellular and multicellular organisms differ? A) Unicellular organisms don't have organelles, but multicellular ones do. B) Unicellular organisms use photosynthesis to make food, but multicellular ones do not. C) Unicellular organisms consist of prokaryotes and multicellular organisms are eukaryotes. D) Unicellular organisms are made up of one cell, and multicellular organisms are made up of more than one cell. Show Answer Correct Answer: D) Unicellular organisms are made up of one cell, and multicellular organisms are made up of more than one cell. 11. What is a function of the cytoskeleton? A) Contains DNA. B) Helps a cell keep its shape. C) Surrounds the cell. D) Helps make proteins. Show Answer Correct Answer: B) Helps a cell keep its shape. 12. Robert Hooke observed dead cells, where as this scientist observed free living cells in water ..... A) Robert Hooke. B) Robert Brown. C) Lion corner. D) Purkinje. Show Answer Correct Answer: C) Lion corner. 13. A prokaryotic cell has A) Nucleus, cell membrane, cytoplasm. B) Nucleus, mitochondria, cell membrane. C) Nucleoid, cell membrane, ribosomes. D) Nucleoid, cell wall, mitochondria. Show Answer Correct Answer: C) Nucleoid, cell membrane, ribosomes. 14. In plant cell, Cell wall is A) Dynamic and live. B) Rigid and non living. C) Dynamic and non living. D) Rigid and living. Show Answer Correct Answer: B) Rigid and non living. 15. Who discovered nucleus in the cell? A) Robert Hooke. B) Robert Brown. C) All the above. D) None of the above. Show Answer Correct Answer: B) Robert Brown. 16. Kitchen of cell is A) Mitochondria. B) Endoplasmic reticulum. C) Chloroplasts. D) Golgi apparatus. Show Answer Correct Answer: C) Chloroplasts. 17. The process of plasmolysis in plant cell is defined as: A) Breakdown of plasma membrane in hypotonic solution. B) Shrinkage of cytoplasm in hypertonic medium. C) Shrinkage of Nucleoplasm. D) None of these. Show Answer Correct Answer: B) Shrinkage of cytoplasm in hypertonic medium. 18. A red blood cell immersed in distilled water will A) Swell. B) Shrink. C) Remains unaffected. D) Will break down. Show Answer Correct Answer: A) Swell. 19. Which cell organelle plays a crucial role in detoxifying many poisons and drugs in a cell? A) Golgi apparatus. B) Lysosomes. C) Smooth endoplasmic reticulum. D) Vacuoles. Show Answer Correct Answer: C) Smooth endoplasmic reticulum. 20. The Powerhouse of cell is A) Cytoplasm. B) Nucleus. C) Chloroplast. D) Mitochondria. Show Answer Correct Answer: D) Mitochondria. 21. Ribosomes are the site of A) Photosynthesis. B) Respiration. C) Protein synthesis. D) Absorption. Show Answer Correct Answer: C) Protein synthesis. 22. Organelle A is involved in membrane biogenesis and as a result organelle B is formed. Find out A and B A) Is B.Cytoplasm. B) ER B.cell membrane. C) Golgi complex B.vacuoles. D) Ribosomes B.cellembrane. Show Answer Correct Answer: B) ER B.cell membrane. 23. The lysosomal enzymes are made by A) Golgi Apparatus. B) Smooth Endoplasmic Reticulum. C) Nucleolus. D) Rough Endoplasmic Reticulum. Show Answer Correct Answer: D) Rough Endoplasmic Reticulum. 24. Which of the following is NOT a unicellular organism? A) Amoeba. B) Chlamydomonas. C) Paramoecium. D) Plants. Show Answer Correct Answer: D) Plants. 25. How do enzymes affect cellular metabolism? A) Enzymes accelerate metabolic reactions by lowering activation energy and providing specificity. B) Enzymes slow down metabolic reactions by increasing activation energy. C) Enzymes are not involved in cellular metabolism at all. D) Enzymes only function in the presence of high temperatures. Show Answer Correct Answer: A) Enzymes accelerate metabolic reactions by lowering activation energy and providing specificity. ← PreviousNext →Related QuizzesClass 9 Science Chapter 5 The Fundamental Unit Of Life Quiz 1Class 9 Science Chapter 5 The Fundamental Unit Of Life Quiz 2Class 9 Science Chapter 5 The Fundamental Unit Of Life Quiz 3Class 9 Science Chapter 5 The Fundamental Unit Of Life Quiz 4Class 9 Science Chapter 5 The Fundamental Unit Of Life Quiz 5Class 9 Science Chapter 5 The Fundamental Unit Of Life Quiz 6Class 9 Science Chapter 5 The Fundamental Unit Of Life Quiz 7Class 9 Science Chapter 5 The Fundamental Unit Of Life Quiz 8Class 9 Science Chapter 5 The Fundamental Unit Of Life Quiz 9Class 9 Science Chapter 5 The Fundamental Unit Of Life Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books