This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 11 Transport In Plants – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 11 Transport In Plants Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is a description of transpiration? A) A exchange of gases between the leaf and the atmosphere. B) B loss of water vapour from the leaves and stems of a plant. C) C movement of water from the roots to the leaves. D) D movement of water through the cells of the leaf. Show Answer Correct Answer: B) B loss of water vapour from the leaves and stems of a plant. 2. Vascular tissue that transports water and minerals ions UPWARDS from a plant's roots is know as ..... A) Chlorophyll. B) Phloem. C) Stomata. D) Xylem. Show Answer Correct Answer: D) Xylem. 3. How are root hair cells adapted for water and mineral absorption? A) Have many chloroplasts. B) Have extensions that increase surface area. C) Have many air spaces. D) None of the above. Show Answer Correct Answer: B) Have extensions that increase surface area. 4. Which part of the plant is involved in pulling water upward from the roots? A) Phloem. B) Transpiration. C) Stomata. D) Root Hair. Show Answer Correct Answer: B) Transpiration. 5. What is the upward movement of water in very small tubes? A) Capillary action. B) Root pressure. C) Transpiration. D) Transpiration pull. Show Answer Correct Answer: A) Capillary action. 6. Which part of the aphid will reach into which structure in the plant? A) Tail piece; phloem. B) Stylet; xylem. C) Tail piect; pith. D) Stylet; phloem. Show Answer Correct Answer: D) Stylet; phloem. 7. The Casparian strip contains a waterproof band made of ..... that prevents further progress of water in the cell walls. A) Lignin. B) Cellulose. C) Suberin. D) Starch. Show Answer Correct Answer: C) Suberin. 8. Cells around the roots use active transport to pump ions into xylem vessels and lower the water potential in the vessels A) Capillary action. B) Root pressure. C) Transpiration. D) Transpiration pull. Show Answer Correct Answer: B) Root pressure. 9. What is the main component of the xylem that provides strength? A) Chlorophyll. B) Cellulose. C) Lignin. D) Starch. Show Answer Correct Answer: C) Lignin. 10. Where does the transpiration pull begin in a plant? A) In the roots. B) In the stem. C) In the leaves. D) In the flowers. Show Answer Correct Answer: C) In the leaves. 11. Which one(s) is / are correct about porins?I. They are proteinsII. They form huge pores in the outer membrane of plastids, mitochondria and some bacteriaIII. They allow molecules upto the size of small proteins to pass through A) All are correct. B) All are incorrect. C) I and III are correct. D) I and II are correct. Show Answer Correct Answer: A) All are correct. 12. Effect of faster flow in the transpiration stream on xylem sap. A) The xylem sap becomes more concentrated. B) The xylem sap remains unchanged. C) The faster the flow, the more dilute the xylem sap is. D) The xylem sap becomes thicker. Show Answer Correct Answer: C) The faster the flow, the more dilute the xylem sap is. 13. Root pressure is maximum when A) Transpiration is high and absorption is very low. B) Transpiration is very low and absorption is high. C) Transpiration is very high and absorption is also very high. D) Transpiration and absorption both are slow. Show Answer Correct Answer: B) Transpiration is very low and absorption is high. 14. What processes help the journey of water up through the plant? A) Adhesion. B) Cohesion. C) Root pressure. D) Transpiration. E) All of the above. Show Answer Correct Answer: E) All of the above. 15. During a hot summer day, Elijah noticed that the plants in his garden were losing water quickly. What happens to transpiration rate at higher temperatures? A) Decreases. B) Increases. C) Remains the same. D) Fluctuates. Show Answer Correct Answer: B) Increases. 16. The pressure flow model for phloem translocation states ..... A) That sink strength drives transport in the pholem. B) That transport in treachery elements is pressure dependent. C) The water potential gradient in the sieve elements drives transport. D) The pressure gradient between the sieve elements at the source and the sink drives phloem transport. Show Answer Correct Answer: D) The pressure gradient between the sieve elements at the source and the sink drives phloem transport. 17. Phloem conducts water upwards in a plant. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 18. What conclusions can be drawn from the results of the experiment? A) There is a direct causation between the tested variables. B) There is a significant correlation between the tested variables. C) The results were inconclusive and cannot be interpreted. D) The experiment showed no relationship between the variables. Show Answer Correct Answer: B) There is a significant correlation between the tested variables. 19. How does surface area affect the rate of diffusion? A) When the surface area is bigger the rate of diffusion of particles is slower. B) When the surface area is bigger the rate of diffusion of particles is faster. C) When the surface area is smaller the rate of diffusion of particles is faster. D) Surface area does not affect diffusion. Show Answer Correct Answer: B) When the surface area is bigger the rate of diffusion of particles is faster. 20. What is it important to have a transport system in organism? A) Transport oxygen and nutrients to the body cell and get rid of waste products. B) Transport waste products to the body cells. C) Transport urea and mineral salts to the body cell. D) Transport carbon dioxide and nutrients to the body cells. Show Answer Correct Answer: A) Transport oxygen and nutrients to the body cell and get rid of waste products. 21. Name the main tissues responsible for transport in plants. A) Phloem and cortex. B) Xylem and phloem. C) Xylem and cambium. D) Pith and cortex. Show Answer Correct Answer: B) Xylem and phloem. 22. What is the plant vessel responsible for transporting sugar? A) Xylem. B) Phloem. C) All the above. D) None of the above. Show Answer Correct Answer: B) Phloem. 23. Which one(s) aids(s) stomatal movement- A) Heterogenous nature of cell wall. B) Unique shape of guard cell. C) Radial orientation of cellulosic microfibrils in the guard cell. D) All. Show Answer Correct Answer: D) All. 24. Water travels from root hair cells to the leaves.What is the passage of water between these structures? A) Xylem $\rightarrow$ cortex cells $\rightarrow$ mesophyll cells. B) Cortex cells $\rightarrow$ mesophyll cells $\rightarrow$ xylem. C) Xylem $\rightarrow$ mesophyll cells $\rightarrow$ cortex cells. D) Cortex cells $\rightarrow$ xylem $\rightarrow$ mesophyll cells. Show Answer Correct Answer: D) Cortex cells $\rightarrow$ xylem $\rightarrow$ mesophyll cells. 25. The process which brings about entry of water into seed coat when seeds are placed in water for germination is A) Diffusion. B) Osmosis. C) DPD. D) Imbibition. Show Answer Correct Answer: D) Imbibition. ← PreviousNext →Related QuizzesClass 11 Biology Chapter 11 Transport In Plants Quiz 1Class 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 10Class 11 Biology Chapter 11 Transport In Plants Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books