This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 11 Transport In Plants – Quiz 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 11 Transport In Plants Quiz 17 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Root hairs do not play a role in- A) Minerals uptake. B) Water uptake. C) O$_{2}$ uptake. D) CO$_{2}$ uptake. Show Answer Correct Answer: D) CO$_{2}$ uptake. 2. How does the structure of a celery stalk facilitate water transport? A) The phloem in the celery stalk is responsible for water transport. B) The outer skin of the celery stalk prevents water loss. C) Water is absorbed through the leaves of the celery stalk. D) The xylem vessels in the celery stalk facilitate efficient water transport. Show Answer Correct Answer: D) The xylem vessels in the celery stalk facilitate efficient water transport. 3. If a cell A with DPD = 5 bars is connected to cells B, C and D, whose OP and TP are respectively 5 and 5, 10 and 4, and 8 and 3, the flow of water will be A) C to A, B and D. B) A and D to B and C. C) A to B, C and D. D) B to A, C and D. Show Answer Correct Answer: D) B to A, C and D. 4. True or false:A xylem vessel is made of many dead cells fused together to form a long hollow tube. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 5. Name the main components of blood and their functions. A) Plasma-transport; red blood cells-defense; white blood cells-clotting. B) Plasma-digestion; red blood cells-excretion; platelets-transport. C) Plasma-clotting; white blood cells-transport; red blood cells-defense. D) Plasma-transport; red blood cells-carry oxygen; white blood cells-defense. Show Answer Correct Answer: D) Plasma-transport; red blood cells-carry oxygen; white blood cells-defense. 6. What happens to the water potential in root hair cells when there is a high concentration of minerals in the cell sap? A) It decreases. B) It becomes zero. C) It increases. D) It remains the same. Show Answer Correct Answer: A) It decreases. 7. The metal ion involved in the stomatal regulation is A) Zinc. B) Magnesium. C) Potassium. D) Iron. Show Answer Correct Answer: C) Potassium. 8. The movement of water through the apoplastic pathway is slower than through the symplastic pathway. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 9. What food substance is made by plants during photosynthesis? A) Granulated sugar. B) Carbon dioxide. C) Oxygen. D) Glucose. Show Answer Correct Answer: D) Glucose. 10. What is the major difference between xylem and phloem? A) Xylem transports sugars and organic compounds, while phloem transports water and minerals. B) Xylem and phloem have the same function of transporting sugars and organic compounds. C) Xylem transports water and minerals, while phloem transports sugars and organic compounds. D) Xylem and phloem both transport water and minerals. Show Answer Correct Answer: C) Xylem transports water and minerals, while phloem transports sugars and organic compounds. 11. Water transported from stems to leaves through what? A) Xylem. B) Phloem. C) Roots. D) Stems. Show Answer Correct Answer: A) Xylem. 12. The stomata is also used in photosynthesis and respiration. A) True, carbon dioxide & oxygen go through it. B) True, glucose goes through it. C) False. D) None of the above. Show Answer Correct Answer: A) True, carbon dioxide & oxygen go through it. 13. A ..... is commonly used in quantitative transpiration experiments. A) Pedometer. B) Photometer. C) Potometer. D) Barometer. Show Answer Correct Answer: C) Potometer. 14. When the humidity is high, in other words, when there is a lot of water vapour in the air, the water potential gradient between the inside of the leaf and the atmosphere is shallow (basically not a big difference in water content between the inside and outside of the leaf). In this situation, the rate of transpiration will be low. A) True. B) False. C) No clue. D) None of the above. Show Answer Correct Answer: A) True. 15. Loss of water from the stomatal pore causes ..... A) Transpirational pull. B) Adhesion between water molecules and xylem wall. C) Water movement by symplast pathway. D) Translocation. Show Answer Correct Answer: A) Transpirational pull. 16. The place where an animal lives is called its ..... A) Climate. B) Habitat. C) Field. D) Forest. Show Answer Correct Answer: B) Habitat. 17. Which chamber of the heart has the thicker muscular walls? A) Right atrium. B) Right ventricle. C) Left atrium. D) Left ventricle. Show Answer Correct Answer: D) Left ventricle. 18. Which side of the heart pumps oxygen-rich blood to the rest of the body? A) Right. B) Left. C) All the above. D) None of the above. Show Answer Correct Answer: B) Left. 19. What is the primary role of leaves in a plant? A) Photosynthesis. B) Storing nutrients. C) Absorbing water. D) Supporting the plant. Show Answer Correct Answer: A) Photosynthesis. 20. Xylem contributes to the mechanical strength of plants because of the presence of ..... A) Suberin. B) Lignin. C) Large lumen. D) Cross walls. Show Answer Correct Answer: B) Lignin. 21. Identify the type of carbohydrate transported in the phloem. A) Maltose. B) Glucose. C) Starch. D) Sucrose. Show Answer Correct Answer: D) Sucrose. 22. Companion cells can be found in all the following locations except ..... A) Leaf epidermis. B) Stems. C) Root. D) Tree trunks. Show Answer Correct Answer: A) Leaf epidermis. 23. What is defined as the loss of water vapour from plant leaves by evaporation of water at the surfaces of the mesophyll cells followed by diffusion of water through the stomata? A) Transpiration. B) Translocation. C) Cohesion. D) Gas exchange. Show Answer Correct Answer: A) Transpiration. 24. What is a function of phloem but not xylem? A) Supporting the plant. B) Transporting mineral ions. C) Transporting amino acids. D) Transporting water. Show Answer Correct Answer: C) Transporting amino acids. 25. Which one / ones is / are correct? A) Smaller substances diffuse faster. B) Hydrophilic substances cannot pass through the cell membrane due to lipid present in the cell membrane. C) Diffusion is rapid over short distance but extremely slow over long distance. D) All. Show Answer Correct Answer: D) All. 26. A student extracs liquid from the phloem tissue of a plant. They test the liquid for the presence of sugars. Which form of sugar will they find in the liquid? A) Glucose. B) Starch. C) Maltose. D) Sucrose. Show Answer Correct Answer: D) Sucrose. 27. How does a decrease in light intensity affect the rate of transpiration? A) Increases transpiration rate. B) Decreases transpiration rate. C) All the above. D) None of the above. Show Answer Correct Answer: B) Decreases transpiration rate. 28. What process transports minerals from the soil to root cells when the soil has a lower mineral concentration than the root cells? A) Osmosis. B) Passive transport. C) Diffusion. D) Active transport. Show Answer Correct Answer: D) Active transport. 29. Sophia is observing the plants in her garden on a windy day. She wonders how the wind speed affects the transpiration rate of her plants. A) Only affects temperature. B) Increases transpiration rate. C) Decreases transpiration rate. D) Has no effect. Show Answer Correct Answer: B) Increases transpiration rate. 30. Which two components make up vascular tissue? A) Xylem and Phloem. B) Roots and Leaves. C) Stems and Flowers. D) Chlorophyll and Stomata. Show Answer Correct Answer: A) Xylem and Phloem. 31. Which component of blood is responsible for carrying oxygen? A) Platelets. B) White blood cell. C) Red blood cell. D) Plasma. Show Answer Correct Answer: C) Red blood cell. 32. Water and minerals move upward from the root to the rest of the plant in this vascular tissue. A) Phloem. B) Leaves. C) Xylem. D) Root. Show Answer Correct Answer: C) Xylem. 33. Roots alone can absorb water whereas the leaves or stems cannot A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 34. Which of the following statements provides the BEST explanation of why sucrose rather than glucose is transported by the phloem? A) Sucrose passes through plant cell surface membranes more easily. B) Sucrose is a disaccharide and is more easily converted to starch. C) Sucrose is a non-reducing sugar and so it is less reactive. D) Sucrose synthesis does not require ATP. Show Answer Correct Answer: C) Sucrose is a non-reducing sugar and so it is less reactive. 35. The plant that does not exhibit guttation is A) Banana. B) Mango. C) Strawberry. D) Nasturtium. Show Answer Correct Answer: B) Mango. 36. If a cell is placed in a HYPERTONIC solution, water will move ..... of the cell, causing it to ..... A) Into, swell. B) Out of, shrivel. C) In and out of the cell, stay the same. D) None of the above. Show Answer Correct Answer: B) Out of, shrivel. 37. What generates root pressure in cells of plant roots? A) Transpiration. B) Absorption of Water. C) Osmotic Pressure. D) Cohesion. Show Answer Correct Answer: C) Osmotic Pressure. 38. Increase in wind speed results in increased rate of transpiration because A) Increased wind speed helps to maintain high water vapour gradient across stomatal opening. B) Increased wind speed helps to keep the leaves moving, leading to increased evaporation of water. C) Increased wind speed increase the rate of photosynthesis. D) Increased wind speed increases the rate of stomatal opening. Show Answer Correct Answer: A) Increased wind speed helps to maintain high water vapour gradient across stomatal opening. 39. The correct relationship between humidity and the rate of transpiration of plants. A) The humidity is not affecting the rates oftranspiration. B) As the humidity increase, the rate oftranspiration decrease. C) As the humidity increase, the rate oftranspiration increase. D) As the humidity decrease the rate oftranspiration slightly decrease. Show Answer Correct Answer: B) As the humidity increase, the rate oftranspiration decrease. 40. Why do plants need nitrate ions? A) To make water. B) To make glucose. C) To make proteins. D) None of the above. Show Answer Correct Answer: C) To make proteins. 41. Which of the following is involved in the process of translocation in plants? A) Water and minerals. B) Sugars and amino acids. C) Oxygen and carbon dioxide. D) Water and oxygen. Show Answer Correct Answer: B) Sugars and amino acids. 42. Why must radioactive CO2 be used when tracing phloem flow? A) It is incorporated into the minerals in the phloem. B) It is incorporated into the sucrose during photosynthesis. C) It is incorporated into the phloem cells. D) It is incorporated into the sucrose during cellular respiration. Show Answer Correct Answer: B) It is incorporated into the sucrose during photosynthesis. 43. Xylem is derived from a Greek word A) Xylon. B) Xlom. C) Xlin. D) None of the above. Show Answer Correct Answer: A) Xylon. 44. Unidirectional flow of water, minerals, some organic nitrogen and hormones occurs through- A) Phloem. B) Root. C) Xylem. D) Vascular tissue. Show Answer Correct Answer: C) Xylem. 45. How would you expect decreasing the surface area of leaves to affect the rate of transpiration? A) Decrease it. B) Increase it. C) No change. D) Can't predict. Show Answer Correct Answer: A) Decrease it. 46. When water moves through a semi permeable membrane then which of the following pressure develops? A) W.P. B) T.P. C) S.P. D) O.P. Show Answer Correct Answer: D) O.P. 47. The evaporation of water from the stomata (openings in the leaves) is the process of ..... A) Perspiration. B) Translocation. C) Transpiration. D) Diffusion. Show Answer Correct Answer: C) Transpiration. 48. Guttation is the result of:AIPMT Mains 2011 A) 2.Diffusion. B) 3.Transpiration. C) 4.Osmosis. D) 1.Root Pressure. Show Answer Correct Answer: D) 1.Root Pressure. 49. Which of the following conditions will favour a most reduced rate of transpiration? A) Reduced environmental temperature and high light intensity. B) Increased environmental temperature and reduced wind speed. C) Increased relative humidity and reduced wind speed. D) Reduced relative humidity and increased wind speed. Show Answer Correct Answer: C) Increased relative humidity and reduced wind speed. 50. Water Vapor Diffusion A) Water vapor is absorbed by the roots of plants. B) Water vapor passes via diffusion through the air spaces in the mesophyll and out of the stomata. C) Water vapor is released during photosynthesis only at night. D) Water vapor is stored in the chloroplasts of plant cells. Show Answer Correct Answer: B) Water vapor passes via diffusion through the air spaces in the mesophyll and out of the stomata. 51. Phloem tubes transport substances ..... A) From the roots to the stem and leaves. B) From the leaves to the rest of the plant. C) All the above. D) None of the above. Show Answer Correct Answer: B) From the leaves to the rest of the plant. 52. Which is not an example of an assimilate that could be found in the phloem sieve tube element A) Sucrose. B) Amino acids. C) Potassium ions. D) Hormones such as oestrogen. Show Answer Correct Answer: D) Hormones such as oestrogen. 53. The thicker the waxy cuticle on the surface of a leaf, ..... A) The faster the rate of transpiration. B) The slower the rate of transpiration. C) All the above. D) None of the above. Show Answer Correct Answer: B) The slower the rate of transpiration. 54. What are the factors that affect transpiration rate in plants? A) Number of petals on the plant's flowers. B) Color of the plant's leaves. C) Type of music played near the plant. D) Factors that affect transpiration rate in plants include humidity, temperature, wind, light intensity, and soil moisture. Show Answer Correct Answer: D) Factors that affect transpiration rate in plants include humidity, temperature, wind, light intensity, and soil moisture. 55. In an apple tree, it is expected that the sugars produced by the tree would flow from (i) ..... to (ii) ..... Choose the option that would correctly fill in the terms in the sentence above. A) (i) the roots (ii) a growing shoot. B) (i) the trunk (ii) a leaf. C) (i) a leaf (ii) a growing apple. D) (i) a growing shoot (ii) a leaf. Show Answer Correct Answer: C) (i) a leaf (ii) a growing apple. 56. In which part of the plant is food transported downward and upward? A) Cambium. B) Pericycle. C) Phloem. D) Xylem. Show Answer Correct Answer: C) Phloem. 57. Phloem is responsible for transporting: A) Water. B) Sucrose. C) Minerals. D) Oxygen. Show Answer Correct Answer: B) Sucrose. 58. Transpiration is the consequence of which feature of plants? A) The presence of symplast and apoplast pathways. B) The requirement for a transport system in plants. C) The requirement for leaves to exchange gases. D) The thin waxy cuticle on the lower epidermis of leaves. Show Answer Correct Answer: B) The requirement for a transport system in plants. 59. Which vessel mainly transport deoxygenated blood? A) Aorta. B) Vein. C) Artery. D) Capillary. Show Answer Correct Answer: B) Vein. 60. Which cell provides energy for phloem? A) Lignin Cell. B) Starch Cell. C) Companion Cell. D) Guard Cell. Show Answer Correct Answer: C) Companion Cell. ← 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