This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 11 Transport In Plants – Quiz 42 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 11 Transport In Plants Quiz 42 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. 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. 3. The plant that does not exhibit guttation is A) Strawberry. B) Nasturtium. C) Mango. D) Banana. Show Answer Correct Answer: C) Mango. 4. 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. 5. What generates root pressure in cells of plant roots? A) Absorption of Water. B) Cohesion. C) Transpiration. D) Osmotic Pressure. Show Answer Correct Answer: D) Osmotic Pressure. 6. 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. 7. The correct relationship between humidity and the rate of transpiration of plants. A) As the humidity increase, the rate oftranspiration decrease. B) As the humidity increase, the rate oftranspiration increase. C) As the humidity decrease the rate oftranspiration slightly decrease. D) The humidity is not affecting the rates oftranspiration. Show Answer Correct Answer: A) As the humidity increase, the rate oftranspiration decrease. 8. 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. 9. 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. 10. Why must radioactive CO2 be used when tracing phloem flow? A) It is incorporated into the phloem cells. B) It is incorporated into the minerals in the phloem. C) It is incorporated into the sucrose during cellular respiration. D) It is incorporated into the sucrose during photosynthesis. Show Answer Correct Answer: D) It is incorporated into the sucrose during photosynthesis. 11. Xylem is derived from a Greek word A) Xylon. B) Xlom. C) Xlin. D) None of the above. Show Answer Correct Answer: A) Xylon. 12. Unidirectional flow of water, minerals, some organic nitrogen and hormones occurs through- A) Xylem. B) Phloem. C) Root. D) Vascular tissue. Show Answer Correct Answer: A) Xylem. 13. How would you expect decreasing the surface area of leaves to affect the rate of transpiration? A) Increase it. B) Decrease it. C) No change. D) Can't predict. Show Answer Correct Answer: B) Decrease it. 14. When water moves through a semi permeable membrane then which of the following pressure develops? A) O.P. B) S.P. C) T.P. D) W.P. Show Answer Correct Answer: A) O.P. 15. The evaporation of water from the stomata (openings in the leaves) is the process of ..... A) Transpiration. B) Translocation. C) Diffusion. D) Perspiration. Show Answer Correct Answer: A) Transpiration. 16. Guttation is the result of:AIPMT Mains 2011 A) 1.Root Pressure. B) 2.Diffusion. C) 3.Transpiration. D) 4.Osmosis. Show Answer Correct Answer: A) 1.Root Pressure. 17. 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. 18. 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. 19. 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. 20. Which is not an example of an assimilate that could be found in the phloem sieve tube element A) Amino acids. B) Sucrose. C) Potassium ions. D) Hormones such as oestrogen. Show Answer Correct Answer: D) Hormones such as oestrogen. 21. 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. 22. 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. 23. 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) a leaf (ii) a growing apple. B) (i) the trunk (ii) a leaf. C) (i) the roots (ii) a growing shoot. D) (i) a growing shoot (ii) a leaf. Show Answer Correct Answer: A) (i) a leaf (ii) a growing apple. 24. In which part of the plant is food transported downward and upward? A) Xylem. B) Cambium. C) Phloem. D) Pericycle. Show Answer Correct Answer: C) Phloem. 25. Phloem is responsible for transporting: A) Minerals. B) Water. C) Sucrose. D) Oxygen. Show Answer Correct Answer: C) Sucrose. ← PreviousNext →Related 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 8Class 11 Biology Chapter 11 Transport In Plants Quiz 9Class 11 Biology Chapter 11 Transport In Plants Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books