This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 11 Transport In Plants – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 11 Transport In Plants Quiz 21 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Water moves from one Tracheid to another through A) Perforations. B) Pit membrane. C) Sieve plate. D) None of the above. Show Answer Correct Answer: B) Pit membrane. 2. Lignin helps to prevent the ..... of the xylem vessels as a result of ..... tension within the xylem, and this tension that is caused by the ..... exerted on water molecules within the xylem A) Collapse, high, root pressure. B) Rupture, high, transpiration pull. C) Bending, high, root pressure. D) Collapse, high, transpiration pull. Show Answer Correct Answer: D) Collapse, high, transpiration pull. 3. What is the role of tracheids and vessel elements in plants? A) Water conduction. B) Food storage. C) Photosynthesis. D) Protection. Show Answer Correct Answer: A) Water conduction. 4. Which variable is the one that is changed by the experimenter in the potometer experiment? A) Light intensity. B) Temperature. C) Wind speed. D) Humidity. Show Answer Correct Answer: A) Light intensity. 5. What is the role of lignin in xylem vessels? A) To provide flexibility. B) To conduct photosynthesis. C) To provide structural support and impermeability to water. D) To store nutrients. Show Answer Correct Answer: C) To provide structural support and impermeability to water. 6. How do guard cells help control the rate of transpiration? A) By absorbing water from the soil. B) By opening and closing the stomata. C) By transporting water to the roots. D) By producing chlorophyll. Show Answer Correct Answer: B) By opening and closing the stomata. 7. The Casparian strip prevents water movement through the apoplastic pathway. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 8. Which statement best describes lignin in xylem vessel walls? A) Elastic, protein matrix storing nutrients. B) Soft, permeable lipid easing diffusion. C) Flexible, hydrophilic sugar reducing tension. D) Rigid, waterproof polymer strengthening walls. Show Answer Correct Answer: D) Rigid, waterproof polymer strengthening walls. 9. What is the role of root hairs in plants? A) To store nutrients for the plant. B) To increase the surface area for absorption of water and minerals from the soil. C) To provide structural support to the plant. D) To facilitate photosynthesis in the roots. Show Answer Correct Answer: B) To increase the surface area for absorption of water and minerals from the soil. 10. The rate of translocation in the phloem was observed to decrease steadily after a plant was placed in an environment without oxygen for several minutes. Why did this happen? A) The cells in the plants stop respiring. B) The xylem no longer takes in water for the plant. C) Active transport of mineral salts can no longer occur. D) The plant can no longer synthesize sugars to provide energy. Show Answer Correct Answer: A) The cells in the plants stop respiring. 11. Water and mineral ions A) Are transported through a plant in xylem. The flow of water through a plant is called transpiration. B) Are transported through a plant in phloem. The flow of water through a plant is called transpiration. C) Are transported through a plant in xylem. The flow of water through a plant is called translocation. D) Are transported through a plant in phloem. The flow of water through a plant is called translocation. Show Answer Correct Answer: B) Are transported through a plant in phloem. The flow of water through a plant is called transpiration. 12. It is the movement of large molecules out of the cell via the fusion of vesicles and the cell membrane. A) Endocytosis. B) Exocytosis. C) All the above. D) None of the above. Show Answer Correct Answer: B) Exocytosis. 13. What process moves water into the root hair cells? A) Diffusion. B) Active Transport. C) Osmosis. D) Magic. Show Answer Correct Answer: C) Osmosis. 14. Which tissue is made of living cells? A) Xylem. B) Phloem. C) Vascular bundle. D) Root. Show Answer Correct Answer: B) Phloem. 15. What substances are transported by the phloem? A) Water and mineral salts. B) Mineral salts and sucrose. C) Sucrose and amino acids. D) Amino acids and mineral salts. Show Answer Correct Answer: C) Sucrose and amino acids. 16. All of the following are forces involved in the process of transpiration EXCEPT ..... A) Root pressure. B) Capillary action. C) Active transport. D) Transpiration pull. Show Answer Correct Answer: C) Active transport. 17. What is the correct order of conduction of water and minerals by root hair cells? A) Root hairs, cortex, xylem. B) Roots Hairs, Cortex, Xylem. C) None of the above. D) Root hairs, Xylem, Cortex,. Show Answer Correct Answer: A) Root hairs, cortex, xylem. 18. Why does the rate of transpiration increase if the light intensity is increased? A) The humidity increases, which makes the rate of transpiration increase. B) The stomata open wider to let more carbon dioxide into the leaf for photosynthesis. C) The root hair cells become more permeable to water, letting more water into the plant and through the xylem. D) None of the above. Show Answer Correct Answer: B) The stomata open wider to let more carbon dioxide into the leaf for photosynthesis. 19. Which cells act as packing tissue and have many metabolic functions A) Parenchyma. B) Collenchyma. C) Mesophyll. D) Vascular tissue. Show Answer Correct Answer: A) Parenchyma. 20. Root pressure which plays a small role in xylem flow is caused by A) Transpiration of water out of the xylem. B) Cohesion of water molecules to one another. C) Adhesion of water molecules to walls of the xylem. D) Osmotic flow of water into the xylem. Show Answer Correct Answer: D) Osmotic flow of water into the xylem. 21. What is the difference between the transport direction of xylem and phloem tissue? A) Xylem transports upward, phloem transports downward. B) Xylem transports downward, phloem transports upward. C) Both xylem and phloem transport in the same direction. D) Both xylem and phloem transport in opposite directions. Show Answer Correct Answer: A) Xylem transports upward, phloem transports downward. 22. Transport of food from the leaves to other parts of the plants is called: A) Transcription. B) Translocation. C) Transpiration. D) Translation. Show Answer Correct Answer: B) Translocation. 23. Symplastic pathway involves the movement of water through the cytoplasm and plasmodesmata of the cells. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 24. What is the effect of wind on the rate of transpiration? A) No effect. B) Decreases it. C) Increases it. D) Stops it. Show Answer Correct Answer: C) Increases it. 25. Which sequence represents the correct pathway for the removal of urine from the human body? A) Kidney $\rightarrow$ ureter $\rightarrow$ urinary bladder $\rightarrow$ urethra. B) Kidney $\rightarrow$ urethra $\rightarrow$ urinary bladder $\rightarrow$ ureter. C) Ureter $\rightarrow$ kidney $\rightarrow$ urinary bladder $\rightarrow$ urethra. D) Urethra $\rightarrow$ kidney $\rightarrow$ urinary bladder $\rightarrow$ ureter. Show Answer Correct Answer: A) Kidney $\rightarrow$ ureter $\rightarrow$ urinary bladder $\rightarrow$ urethra. ← 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