This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 11 Transport In Plants – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 11 Transport In Plants Quiz 20 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the name of the process by which water is lost from the leaves of a plant? A) Transpiration. B) Photosynthesis. C) Condensation. D) Evaporation. Show Answer Correct Answer: A) Transpiration. 2. In Mia's garden, what is a source in the context of plant transport? A) A part that uses sucrose. B) A part that absorbs nutrients. C) A part that stores water. D) A part that produces sucrose. Show Answer Correct Answer: D) A part that produces sucrose. 3. Plants primarily obtain their organic molecules through transpiration. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 4. What is the name of the process by which sugars are transported from the leaves to other parts of the plant? A) Respiration. B) Transpiration. C) Translocation. D) Photosynthesis. Show Answer Correct Answer: C) Translocation. 5. The loss of water vapour from the leaves of a plant. A) Translocation. B) Photosynthesis. C) Transpiration. D) Evaporation. Show Answer Correct Answer: C) Transpiration. 6. What is the purpose of lignin? A) To provide structure for xylem cells. B) To provide structure for phloem cells. C) To open and close the stomata. D) To increase surface area. Show Answer Correct Answer: A) To provide structure for xylem cells. 7. Which part of the onion do we eat? A) Fruit. B) Leaves. C) Stem. D) Flower. E) Root. Show Answer Correct Answer: B) Leaves. 8. Hairs on the inner epidermis of xerophytes reduce air-flow and trap moist air. They are called: A) Projections. B) Spikes. C) Trichomes. D) Sunken stomata. Show Answer Correct Answer: C) Trichomes. 9. The walls of the mesophyll cells are dry, and no water evaporates into the air space within the leaf. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 10. What is the food made during photosynthesis converted into? A) Sucrose. B) Starch. C) Fructose. D) Glucose. Show Answer Correct Answer: A) Sucrose. 11. ..... is the process where water evaporates from the leaves, creating a pulling force for water to move upward. A) Respiration. B) Germination. C) Photosynthesis. D) Transpiration. Show Answer Correct Answer: D) Transpiration. 12. Which of the following BEST describes how water move to leaves.I-turgor pressure II-capillarity III-transpiration A) I, II, III. B) I only. C) I and III only. D) II only. Show Answer Correct Answer: A) I, II, III. 13. Phloem tissue contains dead, empty hollow cells. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 14. High wind speed causes a greater rate of transpiration because ..... A) The wind removes water vapour from the air around the leaves maintaining the concentration gradient for diffusion. B) Wind gives the gases in the air more KE. C) Water vapour can get blown back inside the leaves through the stomata. D) None of the above. Show Answer Correct Answer: A) The wind removes water vapour from the air around the leaves maintaining the concentration gradient for diffusion. 15. Evaporation of water from leaves is important as A) It cools the leaves and helps water to move up the plant. B) It makes the plant wilt. C) It helps the plant to respire. D) None of the above. Show Answer Correct Answer: A) It cools the leaves and helps water to move up the plant. 16. What is one major difference between passive and active transport? A) Passive transport uses energy; active transport does not. B) Both types of transport use energy. C) Active transport uses energy; passive transport does not. D) No difference. They are both the same. Show Answer Correct Answer: C) Active transport uses energy; passive transport does not. 17. Particles too large to enter the membrane ..... need help from channel proteins ..... no energy is required. A) Active transport. B) Passive transport. C) Facilitated diffusion. D) None of the above. Show Answer Correct Answer: C) Facilitated diffusion. 18. Mineral ions move from the soil into the roots by the process of? A) Osmosis. B) Diffusion. C) Active transport. D) None of the above. Show Answer Correct Answer: C) Active transport. 19. ..... involves expenditure of energy A) Diffusion. B) Active transport. C) Imbibition. D) Osmosis. Show Answer Correct Answer: B) Active transport. 20. Potato and ginger are the examples of A) Roots. B) Stems of the plants that store food. C) Fruits. D) Seeds. Show Answer Correct Answer: B) Stems of the plants that store food. 21. Which type of xylem vessel is thickened by interconnecting bars of lignin? A) Spiral. B) Pitted. C) Annular. D) Reticulated. Show Answer Correct Answer: D) Reticulated. 22. What happens during ion exchange in plant roots? A) Ions at the surface of soil particles oscillate and exchange. B) Ions are absorbed without any exchange. C) Only cations are exchanged. D) Anions cannot be exchanged. Show Answer Correct Answer: A) Ions at the surface of soil particles oscillate and exchange. 23. Companion cells are connected to sieve tube elements by A) Small plastids. B) Protein fibres. C) Plasmodesmata. D) Polymer molecules. Show Answer Correct Answer: C) Plasmodesmata. 24. Inner part of a trunk of older branch is known as A) Sapwood. B) Secondary xylem. C) Heartwood. D) None of the above. Show Answer Correct Answer: C) Heartwood. 25. Xylem is a long, hollow tube without any protoplasm to provide mechanical support and translocate manufactured food in the plant. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 26. Which specialized cells in the root provide a larger surface area for osmosis to occur? A) Root hair cells. B) Phloem cells. C) Stomata cells. D) Xylem cells. Show Answer Correct Answer: A) Root hair cells. 27. Transpiration facilitates- A) Transferring minerals to leaves. B) To maintain turgidity (hence shape and structure of the plant). C) Availability of water to photosynthesis. D) All. Show Answer Correct Answer: D) All. 28. The gas that escapes through stomata during transpiration A) Water vapour. B) Carbon dioxide. C) Oxygen. D) Hydrogen. Show Answer Correct Answer: A) Water vapour. 29. Which statement distinguishes pits from open pores in xylem? A) Pits retain cellulose wall without lignin. B) Pits are large openings lacking wall. C) Pits contain protein channels for ions. D) Pits are sealed by suberin lamellae. Show Answer Correct Answer: A) Pits retain cellulose wall without lignin. 30. What gas is TAKEN IN during photosynthesis? A) Argon. B) Oxygen. C) Carbon dioxide. D) Nitrogen. Show Answer Correct Answer: C) Carbon dioxide. 31. What percentage of plasma is made up of water? A) 55%. B) 100%. C) 90%. D) 45%. Show Answer Correct Answer: C) 90%. 32. A plant absorbs water and mineral ions through its roots. A) Absorbs water and mineral ions through its roots. B) Absorbs water and mineral ions through its leaves. C) Absorbs water and carbon dioxide through its roots. D) Absorbs water and sucrose through its roots. Show Answer Correct Answer: A) Absorbs water and mineral ions through its roots. 33. Which statement about the membrane channel is not true? A) They are proteins. B) Movement through them is along the concentration gradient. C) The are pores in the membrane. D) All ions pass through the same type of channel. Show Answer Correct Answer: D) All ions pass through the same type of channel. 34. The molecule that combines with oxygen to transport it A) Seratonin. B) Albumin. C) Globulin. D) Haemoglobin. Show Answer Correct Answer: D) Haemoglobin. 35. What is the hypothesis for the experiment on temperature and water transport? A) Temperature has no effect on water transport in plants. B) Higher temperatures decrease the rate of water transport in plants. C) Higher temperatures increase the rate of water transport in plants. D) Lower temperatures increase the rate of water transport in plants. Show Answer Correct Answer: C) Higher temperatures increase the rate of water transport in plants. 36. In the apoplastic pathway, water travels through the cytoplasm and plasmodesmata of the cells. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 37. Which best describes the term "transpiration" ? A) The movement of water through the plant. B) The movement of water out of the plant stem. C) The evaporation of water from all parts of the plant. D) The evaporation of water from the aerial parts of the plant. Show Answer Correct Answer: D) The evaporation of water from the aerial parts of the plant. 38. What do dead xylem cells carry from roots to stems and leaves? A) Oxygen and Carbon Dioxide. B) Water and Minerals. C) Glucose and Starch. D) Proteins and Lipids. Show Answer Correct Answer: B) Water and Minerals. 39. Which of the following processes facilitates the loading of sugar into phloem vessels? A) Endocytosis. B) Osmosis. C) Active transport. D) Facilitated diffusion. Show Answer Correct Answer: C) Active transport. 40. Root pressure develops due to A) Low osmotic potential in soil. B) Increase in transpiration. C) Passive absorption. D) Active absorption. Show Answer Correct Answer: D) Active absorption. 41. Which one here is not the function of xylem vessels? A) Transporting water and minerals from roots to other parts of the plant. B) Providing structural support to the plant. C) Reducing the flow resistance of water and minerals. D) Helping in the storage of food. Show Answer Correct Answer: D) Helping in the storage of food. 42. Role of diffusion in salt uptake. A) Diffusion is the primary method for all salt uptake. B) Diffusion can play a role in the uptake of some individual salts. C) Diffusion has no effect on salt uptake. D) Diffusion only occurs in liquid solutions. Show Answer Correct Answer: B) Diffusion can play a role in the uptake of some individual salts. 43. The cells in the mesophyll layers are tightly packed and have few spaces around them. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 44. What is the importance of mineral ions for plant growth? A) They are essential for various physiological functions, including enzyme activity, photosynthesis, and overall plant health. B) They provide structural support to the plant's cell walls. C) They are primarily used for energy storage in plants. D) They help in the reproduction of plants by attracting pollinators. Show Answer Correct Answer: A) They are essential for various physiological functions, including enzyme activity, photosynthesis, and overall plant health. 45. What process occurs when water moves from an area of high concentration to low concentration through a semi-permeable membrane in plants? A) Active transport. B) Transpiration. C) Diffusion. D) Osmosis. Show Answer Correct Answer: D) Osmosis. 46. A student is performing a chemical analysis of xylem sap. This student should not expect to find much of- A) Water. B) Nitrogen. C) P. D) Sugar. Show Answer Correct Answer: D) Sugar. 47. What does it mean that a cell membrane is semi-permeable? A) It allows all substances in. B) It allows some substances in. C) It allows nothing in. D) None of the above. Show Answer Correct Answer: B) It allows some substances in. 48. An example of adhesion is A) Water molecules sticking to each other. B) Water molecules sticking to cellulose in xylem walls. C) Magnets sticking to a metal wall. D) Gravity pulling water down. Show Answer Correct Answer: B) Water molecules sticking to cellulose in xylem walls. 49. What does the xylem transport in a plant? A) Water and dissolved sugars. B) Water and dissolved mineral salts. C) Water only. D) Sugars and other nutrients. Show Answer Correct Answer: B) Water and dissolved mineral salts. 50. Which of the following is correct about symplast? A) Living continuum. B) Cell wall and intercellular space. C) Non-Living continuum. D) None of these. Show Answer Correct Answer: A) Living continuum. 51. Which part of the plant provides water and minerals to the xylem? A) Root. B) Stem. C) Leaf. D) Bark. Show Answer Correct Answer: A) Root. 52. Which of the following is not an important use of water in plants? A) To maintain turgor. B) For cell division. C) To keep cool. D) For photosynthesis. Show Answer Correct Answer: B) For cell division. 53. How do water and mineral ions enter a plant? A) Water is through the stomata, mineral ion is through the root. B) Water is by active transport in root hari cells, mineral ion is by osmosis in root hair cells. C) Water is through the root, mineral ion is through the stomata. D) Water is by osmosis in root hair cells, mineral ion is by active transport in root hari cells. Show Answer Correct Answer: D) Water is by osmosis in root hair cells, mineral ion is by active transport in root hari cells. 54. How do root hair cells absorb water? A) By osmosis. B) By diffusion. C) By active transport. D) None of the above. Show Answer Correct Answer: B) By diffusion. 55. What are the vascular bundles? A) Xylem vessels and tracheids. B) Xylem and Phloem. C) Sieve tube elements. D) Phloem and tracheids. Show Answer Correct Answer: B) Xylem and Phloem. 56. A student collected some of the solution from the phloem in the stem of a plant. Which of the following would be present in the liquid? A) Glucose. B) Starch. C) Amino acids. D) Cellulose. Show Answer Correct Answer: C) Amino acids. 57. The air in the internal spaces of the leaf contacts the air outside the leaf through large openings called stomata. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 58. This is the definition for which word:The movement of particles against a concentration gradient (from a low to a high concentration) across a partially permeable membrane which requires energy. A) Transpiration. B) Osmosis. C) Diffusion. D) Active transport. Show Answer Correct Answer: D) Active transport. 59. A decrease in which factor normally causes transpiration rate to increase? A) Stomatal opening. B) Light intensity. C) Humidity. D) Temperature. Show Answer Correct Answer: C) Humidity. 60. The plant tissue that transport sucrose and amino acids DOWNWARD from the leaves to the rest of the pant is the ..... A) Stomata. B) Xylem. C) Chlorophyll. D) Phloem. Show Answer Correct Answer: D) Phloem. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Biology Chapter 11 Transport In Plants Quiz 1Class 11 Biology Chapter 11 Transport In Plants Quiz 2Class 11 Biology Chapter 11 Transport In Plants Quiz 3Class 11 Biology Chapter 11 Transport In Plants Quiz 4Class 11 Biology Chapter 11 Transport In Plants Quiz 5Class 11 Biology Chapter 11 Transport In Plants Quiz 6Class 11 Biology Chapter 11 Transport In Plants Quiz 7Class 11 Biology Chapter 11 Transport In Plants Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books