This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 11 Transport In Plants – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 11 Transport In Plants Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Is mature xylem alive or dead? A) Alive. B) Dead. C) All the above. D) None of the above. Show Answer Correct Answer: B) Dead. 2. How does temperature affect the rate of water transport in plants? A) Temperature increases the rate of water transport in plants by enhancing transpiration and reducing water viscosity. B) Higher temperatures increase water viscosity, slowing transport. C) Temperature has no effect on water transport in plants. D) Temperature decreases transpiration rates, reducing water movement. Show Answer Correct Answer: A) Temperature increases the rate of water transport in plants by enhancing transpiration and reducing water viscosity. 3. What is the role of adhesion in the cohesion-tension mechanism? A) It helps water molecules stick to the xylem walls. B) It helps water molecules stick to each other. C) It increases the water potential in the xylem. D) It prevents water loss through stomata. Show Answer Correct Answer: A) It helps water molecules stick to the xylem walls. 4. This protein produces the red color your RBCs have. A) Antibody. B) Chlorophyll. C) Pepsin. D) Hemoglobin. Show Answer Correct Answer: D) Hemoglobin. 5. What happens to the transpiration rate as the temperature increases? A) It decreases. B) It stays the same. C) It increases. D) None of the above. Show Answer Correct Answer: C) It increases. 6. What process is used by plants to take in water from soil to roots? A) Osmosis. B) Diffusion. C) Active transport. D) Capillarity. Show Answer Correct Answer: A) Osmosis. 7. The functions of stomata are A) Support the plant and absorb water via osmosis. B) Store starch grains and keep water. C) Photosynthesis and respiration. D) Transpiration and gas-exchange. Show Answer Correct Answer: D) Transpiration and gas-exchange. 8. Plants absorb water from the soil with the help of ..... A) Roots. B) Root hairs. C) Root presure. D) Roat pressure. Show Answer Correct Answer: B) Root hairs. 9. What happens to the rate of transpiration if wind speed increases? A) It decreases. B) It stays the same. C) It increases. D) None of the above. Show Answer Correct Answer: C) It increases. 10. How are Root Hair Cells Specialised for their job? A) Long tail, streamlined head and a lot of mitochondria to release energy. B) Long and have branched connections. C) Long and have a lot of mitochondria to release energy for contractions. D) Big surface area. E) Long and joined end to end. Show Answer Correct Answer: D) Big surface area. 11. In the given scenario what will happen? An egg is placed in pure water for 48 hours. A) The egg will gain water and swell. B) Water will move in and out of the cell equally, and the cell with neither shrink nor swell. C) The egg will lose water and shrink. D) None of the above. Show Answer Correct Answer: A) The egg will gain water and swell. 12. What is biggest artery in a human body? A) Capillaries. B) An aorta. C) Arteries. D) Veins. Show Answer Correct Answer: B) An aorta. 13. How does an increase in humidity 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. 14. What is the main function of xylem in plants? A) Producing flowers and fruits. B) Transporting water and minerals. C) Supporting the plant structure. D) Converting sunlight into energy. Show Answer Correct Answer: B) Transporting water and minerals. 15. The rate of transpiration decreases with an increase in A) Humidity. B) Temperature. C) Wind. D) Sunlight. Show Answer Correct Answer: A) Humidity. 16. Which is NOT a function of roots? A) Take in nutrients. B) Make food. C) Anchor plant to ground. D) Take in water. Show Answer Correct Answer: B) Make food. 17. Which external factor can stop the transport of phloem sap? A) High temperatures. B) Intense light. C) High humidity. D) Low temperatures. Show Answer Correct Answer: D) Low temperatures. 18. Which tissue transports water and minerals in plants? A) Phloem. B) Root. C) Xylem. D) Vascular bundle. Show Answer Correct Answer: C) Xylem. 19. What piece of equipment can we use to investigate the rate of transpiration in a plant? A) Respirometer. B) Potometer. C) Algal balls. D) None of the above. Show Answer Correct Answer: B) Potometer. 20. Sweating is the process that plants use to remove excess water. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 21. This is the definition for which word:The flow of water into a root hair cell, up the xylem vessels and evaporation out of the leaves. A) Osmosis. B) Transpiration. C) Active transport. D) Respiration. Show Answer Correct Answer: B) Transpiration. 22. What mechanisms do plants use to absorb water and nutrients from the soil? A) Plants absorb water and nutrients from the soil through their roots using osmosis and diffusion. B) Plants absorb water and nutrients from the soil by relying solely on rainfall. C) Plants absorb water and nutrients from the soil through their leaves during photosynthesis. D) Plants absorb water and nutrients from the soil by using their flowers. Show Answer Correct Answer: A) Plants absorb water and nutrients from the soil through their roots using osmosis and diffusion. 23. The main photosynthetic organs in plants are the stems. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. Which of the following do plants not use water for ..... A) Carrying dissolved minerals. B) Photosynthesis. C) Respiration. D) Keeping cells rigid. Show Answer Correct Answer: C) Respiration. 25. Which of the following is true of leaf structure? A) The lower surface has a thicker waxy cuticle than the upper surface. B) The lower surface contains more stomata than the upper surface. C) The main site of photosynthesis is the spongy mesophyll cells. D) Palisade mesophyll cells are arranged far apart to create air spaces. Show Answer Correct Answer: B) The lower surface contains more stomata than the upper surface. 26. What is the role of the phloem in plants? A) Transport of water. B) Transport of sugars and other organic substances. C) Transport of minerals. D) Photosynthesis. Show Answer Correct Answer: B) Transport of sugars and other organic substances. 27. What is the role of the endodermis in plant roots? A) To transport food. B) To provide structural support. C) To absorb sunlight. D) To regulate water and mineral entry. Show Answer Correct Answer: D) To regulate water and mineral entry. 28. What molecule is the phloem responsible for transporting? A) Glycogen. B) Glucose. C) Water. D) Sucrose. Show Answer Correct Answer: D) Sucrose. 29. What substances does phloem transport? A) Glucose and vitamins. B) Sucrose and amino acids. C) Water and minerals. D) Oxygen and carbon dioxide. Show Answer Correct Answer: B) Sucrose and amino acids. 30. What stain is commonly used to trace water movement in plants? A) Iodine. B) Eosin. C) Dye such as eosin or safranin. D) Methylene blue. Show Answer Correct Answer: C) Dye such as eosin or safranin. 31. Xylem transports substances from the leaves to other parts of the plant. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 32. Which is inversely proportional to the rate of transpiration? A) Humidity. B) Wind speed. C) Light intensity. D) Temperature. Show Answer Correct Answer: A) Humidity. 33. Translocation is the transport of manufactured food by the phloem. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 34. The water potential and osmotic potential of pure water are AIPMT 1998 A) 1.100 and Zero. B) 2.Zero and Zero. C) 3.100 and 200. D) 4.Zero and 100. Show Answer Correct Answer: B) 2.Zero and Zero. 35. Sucrose and amino acids are moved up and down the phloem as needed. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 36. A thistle funnel experiment demonstrates the phenomenon of transpiration pull. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 37. Active transport is the movement of substances A) From an area of higher concentration to higher concentration. B) From an area of higher concentration to lower concentration. C) From an area of lower concentration to higher concentration. D) From an area of lower concentration to lower concentration. Show Answer Correct Answer: C) From an area of lower concentration to higher concentration. 38. What is absorbed by the plant by it's roots, and transpiration takes place as the water exits the ..... ? A) Branch. B) Roots. C) Leaves. D) Stem. Show Answer Correct Answer: C) Leaves. 39. True or False:transpiration increases as temperature increases A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 40. The mass flow theory is best defined as the idea that A) Sucrose is transported due to a negative pressure in a source. B) Large volumes of solution are transported from an area of high hydrostatic pressure. C) Water travels from a high to low concentration. D) Sucrose diffuses to all cells equally. Show Answer Correct Answer: B) Large volumes of solution are transported from an area of high hydrostatic pressure. 41. Which process enables movement of water from cell to cell in plants? A) Respiration. B) Osmosis. C) Translocation. D) Photosynthesis. Show Answer Correct Answer: B) Osmosis. 42. It is also known as "cell-drinking" . A) Phagocytosis. B) Pinocytosis. C) All the above. D) None of the above. Show Answer Correct Answer: B) Pinocytosis. 43. What is being produced during photosynthesis? A) Sugar and oxygen. B) Sugar and carbon dioxide. C) Glucose. D) Gases. Show Answer Correct Answer: A) Sugar and oxygen. 44. The most common sugar made by plants is? A) Carbohydrates. B) Cellulose. C) Sucrose. D) Gluten. Show Answer Correct Answer: C) Sucrose. 45. The walls between adjacent xylem vessel elements were most likely degenerated by the activity of ..... A) Centrioles. B) Cell wall. C) Mitochondria. D) Lysosomes. Show Answer Correct Answer: D) Lysosomes. 46. Transpiration reduces the sugar content of fruits. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 47. What are the expected results when temperature increases? A) Increased snow accumulation. B) Decreased rainfall and droughts. C) Increased evaporation, altered weather patterns, melting ice, and impacts on ecosystems. D) Stable climate conditions. Show Answer Correct Answer: C) Increased evaporation, altered weather patterns, melting ice, and impacts on ecosystems. 48. Deserts are hot and dry so an example of a plant adaptation here is ..... A) Long and deep root systems to absorb ground water. B) Plants grow on each other to reach sunlight. C) Dark in color to absorb sunlight. D) Grow on each other to protect from wind. Show Answer Correct Answer: A) Long and deep root systems to absorb ground water. 49. Which tissue is used in translocation? A) Vascular bundle. B) Xylem. C) Root. D) Phloem. Show Answer Correct Answer: D) Phloem. 50. Adaptations in plant to reduce transpiration are- A) No of stomata. B) Thickness of cuticle. C) Loss of leaves. D) All of the above. Show Answer Correct Answer: D) All of the above. 51. Xylem is ..... tissue and phloem is ..... tissue. A) Dead, live. B) Live, live. C) Live, dead. D) Dead, dead. Show Answer Correct Answer: A) Dead, live. 52. What BEST defines adhesion. A) Water molecules sticking to each other due to the polarity of water. B) Water molecules bonding to each other due to the hydrophobic nature of water. C) Water molecules sticking to other surfaces due to the polarity of water. D) Water molecules bonded to other other surfaces due to the transparency of water. Show Answer Correct Answer: C) Water molecules sticking to other surfaces due to the polarity of water. 53. In xylem, there are gaps within the lignin called ..... These allow surrounding cells to be supplied with water. A) Companion cells. B) Plasmolemma. C) Holes. D) Pits. Show Answer Correct Answer: D) Pits. 54. The phloem parenchyma is made up of A) Thin walled cells. B) Thick walled cells. C) All the above. D) None of the above. Show Answer Correct Answer: A) Thin walled cells. 55. How many chambers does the heart consist of? A) 3. B) 4. C) 2. D) 6. Show Answer Correct Answer: B) 4. 56. Which cells in the root absorb water and minerals from the soil? A) Xylem vessels. B) Endodermis. C) Root hair cells. D) Cortex cells. Show Answer Correct Answer: C) Root hair cells. 57. What is a source in the context of plant transport? A) A cell with high sugar concentration. B) A cell with high water concentration. C) A cell with low mineral concentration. D) A cell with low sugar concentration. Show Answer Correct Answer: A) A cell with high sugar concentration. 58. What is a halophyte? A) Aquatic dwelling Plant. B) Arid dwelling Plant. C) Salt dwelling plant. D) Air dwelling plant. Show Answer Correct Answer: C) Salt dwelling plant. 59. Which of the following needs some energy to help in moving substances? A) Osmosis. B) Translocation. C) Transpiration. D) Diffusion. Show Answer Correct Answer: B) Translocation. 60. Which of the following plant is found to have minimum transportation A) Guava. B) Hydrilla. C) Mango. D) Nerium. Show Answer Correct Answer: D) Nerium. ← 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 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 8Class 11 Biology Chapter 11 Transport In Plants Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books