This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 11 Transport In Plants – Quiz 29 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 11 Transport In Plants Quiz 29 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. True or false:transpiration increases as humidity increases A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 2. During a science experiment, Benjamin observed how temperature changes affected the rate of photosynthesis in a group of plants. What did he learn about the relationship between temperature and photosynthesis? A) Photosynthesis is unaffected by temperature. B) There is an optimal temperature range for photosynthesis. C) Higher temperatures always increase photosynthesis. D) Lower temperatures always decrease photosynthesis. Show Answer Correct Answer: B) There is an optimal temperature range for photosynthesis. 3. What does the phloem transport A) Water. B) Sugar. C) Minerals. D) Air. Show Answer Correct Answer: B) Sugar. 4. Which of these is seen in the xylem? A) End plate. B) Sieve tube element. C) Lignin. D) Nucleus. Show Answer Correct Answer: C) Lignin. 5. Which ion is needed for chlorophyll production? A) Hydrogen. B) Oxygen. C) Magnesium. D) Nitrates. Show Answer Correct Answer: C) Magnesium. 6. The primary difference between the apoplast and the symplast is that the- A) Apoplast is non-living spaces and cell walls. B) Apoplast relies on active transport. C) Symplast is nonliving spaces and cell wall. D) Apoplast prevents passive diffusion. Show Answer Correct Answer: A) Apoplast is non-living spaces and cell walls. 7. The inside of the xylem A) Lumen. B) Vessels. C) Tracheids. D) Lignin. Show Answer Correct Answer: A) Lumen. 8. Which of the following factors affect the rate of transpiration in plants? A) Temperature. B) Humidity. C) Light intensity. D) All of the above. Show Answer Correct Answer: D) All of the above. 9. Companion cells are packed full of ..... to make ATP. A) Mitochondria. B) Chloroplasts. C) Cytoplasm. D) Proton pumps. Show Answer Correct Answer: A) Mitochondria. 10. Xylem tubes transport substances in which direction? A) Up. B) Up and down. C) All the above. D) None of the above. Show Answer Correct Answer: A) Up. 11. Xylem vessels are dead and have no cytoplasm. This helps it so ..... A) Water flow is not slowed down. B) It forms an empty tube for water to flow through. C) Water and minerals can enter and leave the cells. D) None of the above. Show Answer Correct Answer: B) It forms an empty tube for water to flow through. 12. The translocation of organic solutes through phloems is bidirectional because- A) Root acts as source and leaf acts as sink. B) Source and sink irreversed in any season. C) Translocation is ATP regulated process. D) Source-sink relationship is variable depending upon season or needs of plant. Show Answer Correct Answer: D) Source-sink relationship is variable depending upon season or needs of plant. 13. What is the main function of the roots in a plant? A) To produce flowers. B) To absorb water and nutrients. C) To perform photosynthesis. D) To transport food. Show Answer Correct Answer: B) To absorb water and nutrients. 14. Due to the higher concentration of oxygen in the air than your blood, oxygen goes from the lungs into the red blood cells by ..... A) Facilitated Diffusion. B) Simple Diffusion. C) Active Transport. D) Osmosis. Show Answer Correct Answer: B) Simple Diffusion. 15. William is observing a plant in his garden. He notices that the plant is able to transport nutrients and energy from its leaves to other parts of the plant. What is this process called? A) Movement of sucrose and amino acids through phloem. B) Movement of water through xylem. C) Evaporation of water from leaves. D) Absorption of nutrients by roots. Show Answer Correct Answer: A) Movement of sucrose and amino acids through phloem. 16. Which BEST describes a biological sink? A) Where dishes are washed. B) Where sugars come from and load into vascular bundle. C) The areas of a plant where amino acids come from. D) The areas in plants where organic substances are unloaded to. Show Answer Correct Answer: D) The areas in plants where organic substances are unloaded to. 17. An increase in which factor will reduce the flow of water in the xylem? A) Air temperature. B) Light intensity. C) Wind speed. D) Atmospheric humidity. Show Answer Correct Answer: D) Atmospheric humidity. 18. What is the main cause of root pressure in plants? A) Cohesion. B) Translocation. C) Osmosis. D) Active transport. Show Answer Correct Answer: C) Osmosis. 19. What is the main function of the phloem in plants? A) Transport of water. B) Transport of organic compounds. C) Transport of minerals. D) Photosynthesis. Show Answer Correct Answer: B) Transport of organic compounds. 20. How does light affect the movement of phloem sap? A) It increases sugar production through photosynthesis. B) It decreases phloem activity. C) It has no effect. D) It stops water uptake. Show Answer Correct Answer: A) It increases sugar production through photosynthesis. 21. If a cell is placed in a ISOTONIC 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: C) In and out of the cell, stay the same. 22. What are sieve tubes in phloem specialized for? A) Transporting food. B) Defense against pathogens. C) Water conduction. D) Photosynthesis. Show Answer Correct Answer: A) Transporting food. 23. What happens to the water potential in root hair cells after water enters them? A) It decreases. B) It increases. C) It remains unchanged. D) It becomes negative. Show Answer Correct Answer: B) It increases. 24. Which of the following is NOT a characteristic of the phloem? A) Transports water. B) Contains sieve tube elements. C) Moves sugars and amino acids. D) Involved in translocation. Show Answer Correct Answer: A) Transports water. 25. The phloem is made up of sieve tube plates and companion cells. The companion cells A) Has pores to allow sugar to be transported in a continuous flow. B) Provides energy for the transport of glucose. C) Gives company to the phloem. D) Connects xylem to phloem. Show Answer Correct Answer: B) Provides energy for the transport of glucose. ← 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