This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 11 Transport In Plants – Quiz 15 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 11 Transport In Plants Quiz 15 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The plant tissue that carries organic food materials DOWNWARD from the leaves to the rest of the pant is the ..... A) Stomata. B) Phloem. C) Chlorophyll. D) Xylem. Show Answer Correct Answer: B) Phloem. 2. Which process involves the evaporation of water from plant leaves? A) Transpiration. B) Photosynthesis. C) Germination. D) Respiration. Show Answer Correct Answer: A) Transpiration. 3. What is the direction of movement of sugars in phloem? A) Upward. B) Downward. C) Bi-directional. D) Non-multidirectional. Show Answer Correct Answer: C) Bi-directional. 4. In the symplast pathway through what does the water move from cell to cell? A) Plasmodesmata. B) Cell wall. C) Vacuole. D) Nucleus. Show Answer Correct Answer: A) Plasmodesmata. 5. In which order does water pass through these tissues in a plant? A) Xylem $\rightarrow$ mesophyll $\rightarrow$ root cortex. B) Mesophyll $\rightarrow$ xylem $\rightarrow$ root cortex. C) Root cortex $\rightarrow$ mesophyll $\rightarrow$ xylem. D) Root cortex $\rightarrow$ xylem $\rightarrow$ mesophyll. Show Answer Correct Answer: D) Root cortex $\rightarrow$ xylem $\rightarrow$ mesophyll. 6. What is the definition of osmosis? A) The movement of water molecules from a concentrated solution to a dilute solution across a semi permeable membrane. B) The movement of gas molecules from a dilute solution to a concentrated solution across a semi permeable membrane. C) The movement of water molecules from a dilute solution to a concentrated solution across a semi permeable membrane. D) None of the above. Show Answer Correct Answer: C) The movement of water molecules from a dilute solution to a concentrated solution across a semi permeable membrane. 7. Stomata opens during night and closes during day A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 8. In higher plants water rises upwards due to: A) Osmosis. B) Transpiration pull. C) Diffusion. D) Root pressure. Show Answer Correct Answer: B) Transpiration pull. 9. A decrease in which of the following factors would normally cause the transpiration rate to increase? A) Light intensity. B) Temperature. C) Stomatal density. D) Humidity. Show Answer Correct Answer: D) Humidity. 10. How would you expect changing the time of day to affect the rate of transpiration? A) Can't predict. B) No change. C) Increase it. D) Decrease it. Show Answer Correct Answer: A) Can't predict. 11. Force develop in cortex of root which pushes water into xylem of root soil is A) Root pressure. B) Diffusion. C) Osmotic pressure. D) Turgor pressure. Show Answer Correct Answer: C) Osmotic pressure. 12. Inorganic molecules that contained in xylem sap. A) CO$_{2 }$and amino acids. B) Magnesium and sucrose. C) Magnesium and potassium. D) CO$_{2}$ $_{ }$and zinc. Show Answer Correct Answer: C) Magnesium and potassium. 13. It is the space outside the plasma membrane within which material can disperse freely. A) Apoplast. B) Symplast. C) All the above. D) None of the above. Show Answer Correct Answer: A) Apoplast. 14. The plant transport system are made up of ..... types of vascular tissue. A) 2. B) 3. C) Many. D) 1. Show Answer Correct Answer: A) 2. 15. The uptake of ions by the plant cells against the concentration gradient is known as A) Active transport. B) Diffusion. C) None of these. D) Passive transport. Show Answer Correct Answer: A) Active transport. 16. What type of transport is used for the uptake of mineral ions in roots? A) Osmosis. B) Active transport. C) Passive transport. D) Facilitated diffusion. Show Answer Correct Answer: B) Active transport. 17. Which factors affect the rate of transpiration? A) Light Intensity, humidity, pH, wind speed. B) Humidity, temperature, pH, water. C) Light intensity, temperature, pH, wind speed. D) Light Intensity, temperature, humidity, wind speed. Show Answer Correct Answer: D) Light Intensity, temperature, humidity, wind speed. 18. What role does the phloem play in plant transport? A) Transporting food. B) Transporting nutrients. C) Transporting water. D) Transporting oxygen. Show Answer Correct Answer: A) Transporting food. 19. In which part of a leaf does most photosynthesis take place? A) Stomata. B) Epidermis. C) Spongy layer. D) Palisade layer. Show Answer Correct Answer: D) Palisade layer. 20. Transpiration helps in distributing mineral salts within the plant. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 21. It is involved in transporting prepared food from the leaves to other parts of the plants. A) Xylem. B) Phloem. C) All the above. D) None of the above. Show Answer Correct Answer: B) Phloem. 22. The sap absorbed from the soil has a high concentration of mineral salts. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 23. Explain why it is important to keep plants in light A) If plants get light, they become more green. B) Chlorophyll in plants absorb light for photosynthesis to take place. C) Plants need light for warmth. D) Light is produced during photosynthesis. Show Answer Correct Answer: B) Chlorophyll in plants absorb light for photosynthesis to take place. 24. Explain how root hairs help plants to absorb a lot of water in a short time A) Root hairs provide a really big surface area through which water and minerals can be absorbed. B) Root hairs have some hair-like structures. C) Root hairs are water-loving. D) Root hairs store food for the plant. Show Answer Correct Answer: A) Root hairs provide a really big surface area through which water and minerals can be absorbed. 25. These are made up of group of specialised cells that conduct water, dissolved salts and food up or down the stem. A) Vessels. B) Phloem. C) Vascular bundles. D) Xylem. Show Answer Correct Answer: C) Vascular bundles. 26. What does a plant transport system transport? A) Water and food. B) Oxygen, water and food. C) Oxygen and water. D) Oxygen, carbon dioxide, food and water. Show Answer Correct Answer: A) Water and food. 27. True or False:Xylem has living conducting cells. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 28. All of the following increase the surface area available for absorption of water and minerals by a root except- A) Mycorrhiza. B) Numerous branches of root. C) Root hairs. D) None. Show Answer Correct Answer: D) None. 29. Which one of following is incorrect? A) Movement through the apoplast does not involve crossing the cell membrane. B) Water is absorbed along with mineral solutes, by the root hairs, purely by diffusion. C) Apoplastic movement is dependent on the gradient. D) Symplast is the system of adjacent cell wall. Show Answer Correct Answer: D) Symplast is the system of adjacent cell wall. 30. Transpiration has no impact on the development of the root system. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 31. Nitrate ions are important for plants to A) Make proteins. B) Make glucose. C) All the above. D) None of the above. Show Answer Correct Answer: A) Make proteins. 32. If cell A with OP = 5 and TP = 4 is surrounded by cells with OP = 3 and TP = 1, what will be the direction of water? A) From other cells to cell A. B) Water will not move. C) Water will move up. D) From cell A to other cells. Show Answer Correct Answer: D) From cell A to other cells. 33. Which kind of blood is carried by the pulmonary veins? A) Oxygenated. B) Deoxygenated. C) All the above. D) None of the above. Show Answer Correct Answer: A) Oxygenated. 34. True or False:In Michael's garden, the xylem vessels of the plants provide structural support to the stems. A) Only in woody plants. B) True. C) Only in young plants. D) False. Show Answer Correct Answer: B) True. 35. Which part of the plant is responsible for the uptake of water and minerals? A) Roots. B) Flowers. C) Leaves. D) Stems. Show Answer Correct Answer: A) Roots. 36. Which of the following statement is correct regarding root pressure? A) Majority of water transport to fulfil needs of a plant is accomplished by root pressure. B) Effect of root pressure is observed at night and early morning when evaporation is low. C) It maintains the shape and structure of the plants by keeping cells turgid. D) It is responsible for cooling of leaf surfaces upto 10 to 15 degrees. Show Answer Correct Answer: B) Effect of root pressure is observed at night and early morning when evaporation is low. 37. What structure in the endodermis prevents water leakage from the xylem vessels? A) Plasmodesmata. B) Epidermis. C) Cortex. D) Casparian strip. Show Answer Correct Answer: D) Casparian strip. 38. ..... are elongated and lignified supporting cells in the xylem. A) Starch. B) Cellulose. C) Lignin. D) Fibres. Show Answer Correct Answer: D) Fibres. 39. All of the following are involved in translocation EXCEPT: A) Living tissue. B) Companion cells. C) Thick cellulose. D) Diffusion. Show Answer Correct Answer: C) Thick cellulose. 40. Which of the following play a role in stomata closing? A) K+ is pumped out of guard cells; high levels of Abscisic Acid. B) K+ pumped out of guard cell; low levels of Abscisic Acid. C) K+ is pumped into guard cells; high levels of Abscisic Acid. D) K+ is pumped into guard cells; low levels of Abscisic Acid. Show Answer Correct Answer: A) K+ is pumped out of guard cells; high levels of Abscisic Acid. 41. The ..... absorbs nutrients from the ground. A) Leaves. B) Roots. C) Stem. D) None of the above. Show Answer Correct Answer: B) Roots. 42. Sucrose loading into phloem requires A) Diffusion. B) Passive transport. C) Active transport. D) Osmosis. Show Answer Correct Answer: C) Active transport. 43. What is the main factor that influences the rate of sugar transport? A) Uprooting plants. B) Capillary action. C) Rate of photosynthesis. D) Movement of water. Show Answer Correct Answer: C) Rate of photosynthesis. 44. Which features apply to both sieve tube and xylem vessel?1-no end walls2-no nucleus3-no cytoplasm4-dependent on companion cells for energy supply A) 1, 2, 3 and 4. B) 1, 2 and 3. C) 1 and 2. D) 2 only. Show Answer Correct Answer: D) 2 only. 45. What is the function of phloem tissue? A) Photosynthesis. B) Transport of water only. C) Transport of sucrose and amino acids. D) Structural support only. Show Answer Correct Answer: C) Transport of sucrose and amino acids. 46. Which of the following is the most acceptable theory for movement of water through plants? A) Capillarity. B) Root pressure. C) Cohesion theory. D) Passive transport. Show Answer Correct Answer: C) Cohesion theory. 47. Avery noticed that the plants in her garden were wilting. She wondered what could be causing this issue. A) Loss of water without replacement. B) Too much sunlight. C) Lack of nutrients. D) Excess water absorption. Show Answer Correct Answer: A) Loss of water without replacement. 48. In which two layers of the leaf are most active chloroplasts found? A) Palisade and spongy mesophyll. B) Epidermis and stomata. C) Xylem and phloem. D) Roots and spongy mesophyll. Show Answer Correct Answer: A) Palisade and spongy mesophyll. 49. What is translocation? 2016 Q27 A) The transport of water in the xylem tissues. B) The transport of water in the phloem tissues. C) The transport of food in the phloem tissues. D) The transport of food in the xylem tissues. Show Answer Correct Answer: C) The transport of food in the phloem tissues. 50. Xylem and Phloem are both ..... A) Vascular tissue. B) Transpiration. C) Photosynthesis. D) Absorption. Show Answer Correct Answer: A) Vascular tissue. 51. Which of these following is the function of white blood cell? A) Producing antibody. B) Transport hormone. C) Transport oxygen. D) Blood clotting. Show Answer Correct Answer: A) Producing antibody. 52. Blood flows from the vena cava into which chamber of the heart? A) Right ventricle. B) Left ventricle. C) Left atrium. D) Right atrium. Show Answer Correct Answer: D) Right atrium. 53. What vessels carry the blood back to the heart? A) Capillaries. B) Arteries. C) Veins. D) An aorta. Show Answer Correct Answer: C) Veins. 54. Which force causes water molecules to stick to each other by hydrogen bonds? A) Adhesion. B) Cohesion. C) Gravity. D) Tension. Show Answer Correct Answer: B) Cohesion. 55. How does the mineral ions from the soil enter the roots? A) By osmosis. B) By passive transport. C) By active transport. D) None of the above. Show Answer Correct Answer: C) By active transport. 56. Which of the following is correct about facilitated and Active transport? A) Both need energy. B) Both need no ATP. C) Both use carbohydrates to move the molecules across the membrane. D) Both need carrier proteins which are sensitive to inhibitors that react with protein side chains. Show Answer Correct Answer: D) Both need carrier proteins which are sensitive to inhibitors that react with protein side chains. 57. Which type of transport in plants requires energy? A) Facilitated transport. B) Diffusion. C) Active transport. D) Passive transport. Show Answer Correct Answer: C) Active transport. 58. The ..... transports water and minerals from the roots to the leaves. A) Phloem. B) Xylem. C) Chlorophyll. D) Stomata. Show Answer Correct Answer: B) Xylem. 59. Which description of translocation is correct? A) Movement of glucose and amino acids from a sink to a source. B) Movement of glucose and amino acids from a source to a sink. C) Movement of sucrose and amino acids from a sink to a source. D) Movement of sucrose and amino acids from a source to a sink. Show Answer Correct Answer: D) Movement of sucrose and amino acids from a source to a sink. 60. What tissue transports water from the roots to the leaves of the plant? A) Stems. B) Phloem. C) Roots. D) Xylem. Show Answer Correct Answer: D) Xylem. ← 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