This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 11 Transport In Plants – Quiz 40 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 11 Transport In Plants Quiz 40 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. True or False:vascular bundles help to support the plant A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 2. Xylem tissue contains living cells with nuclei. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 3. What part of the leaf prevents water loss? A) Spongy mesophyll. B) Palisade mesophyll. C) Waxy cuticle. D) Xylem. Show Answer Correct Answer: C) Waxy cuticle. 4. Location where substances enter the phloem A) Source. B) Sink. C) Loci. D) Pit. Show Answer Correct Answer: A) Source. 5. What happens to the water potential in root cells when minerals are actively pumped into the root xylem? A) It increases. B) It decreases. C) It remains the same. D) It becomes zero. Show Answer Correct Answer: B) It decreases. 6. Increasing temperature increases the rate of water loss from a plant, A) Because water molecules move faster. B) Because the air moves water molecules away from the leaf faster, making it easier for more water molecules to move out of the leaf. C) Because stomata open wider. This allows water molecules to leave the leaf faster. D) None of the above. Show Answer Correct Answer: A) Because water molecules move faster. 7. The semi-permeable plasma membrane is made up of phospholipid bilayers which has heads and tails, the head part of the bilayer is: A) Hydrophilic. B) Hydrophobic. C) All the above. D) None of the above. Show Answer Correct Answer: A) Hydrophilic. 8. Which plant tissue transports water from roots upwards? A) Cortex. B) Epidermis. C) Xylem. D) None of the above. Show Answer Correct Answer: C) Xylem. 9. Why would the roots die without translocation? A) They would get no water. B) They would get no oxygen and carbon dioxide. C) They would get no sugars from the leaves to survive. D) They would rot. Show Answer Correct Answer: C) They would get no sugars from the leaves to survive. 10. Seeds when soaked in water, they imbibe it because of- A) O.P inside the seed is low. B) OP of water is high. C) DPD of seed is very much low. D) Water potential gradient between the seed coat and water. Show Answer Correct Answer: D) Water potential gradient between the seed coat and water. 11. In a short plant, root pressure is strong enough to push the water up the stem. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. Which part of the plant increases the surface area for absorption? A) Leaves. B) Stem. C) Root hairs. D) Flowers. Show Answer Correct Answer: C) Root hairs. 13. Lignin is ..... A) A long tube of empty cells joined end to end. B) An extension from a cell near the tip of a root. C) A substance that makes up the walls of xylem vessels. D) A small gap between the cells of the epidermis of a plant. Show Answer Correct Answer: C) A substance that makes up the walls of xylem vessels. 14. Why does a large internal surface area in leaves increase water loss? A) It traps air. B) It stores water. C) It allows more evaporation from mesophyll into air spaces. D) It prevents diffusion. Show Answer Correct Answer: C) It allows more evaporation from mesophyll into air spaces. 15. A few drops of sap were collected by cutting across a plant stem by a suitable method. The sap was tested chemically. Which one of the following test results indicates that it is phloem sap? A) Low refractive index. B) Absence of sugar. C) Acidic. D) Alkaline. Show Answer Correct Answer: D) Alkaline. 16. Root hairs do not play a role in- A) O$_{2}$ uptake. B) Minerals uptake. C) Water uptake. D) CO$_{2}$ uptake. Show Answer Correct Answer: D) CO$_{2}$ uptake. 17. How does the structure of a celery stalk facilitate water transport? A) Water is absorbed through the leaves of the celery stalk. B) The outer skin of the celery stalk prevents water loss. C) The xylem vessels in the celery stalk facilitate efficient water transport. D) The phloem in the celery stalk is responsible for water transport. Show Answer Correct Answer: C) The xylem vessels in the celery stalk facilitate efficient water transport. 18. If a cell A with DPD = 5 bars is connected to cells B, C and D, whose OP and TP are respectively 5 and 5, 10 and 4, and 8 and 3, the flow of water will be A) C to A, B and D. B) A and D to B and C. C) A to B, C and D. D) B to A, C and D. Show Answer Correct Answer: D) B to A, C and D. 19. True or false:A xylem vessel is made of many dead cells fused together to form a long hollow tube. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 20. Name the main components of blood and their functions. A) Plasma-transport; red blood cells-defense; white blood cells-clotting. B) Plasma-clotting; white blood cells-transport; red blood cells-defense. C) Plasma-transport; red blood cells-carry oxygen; white blood cells-defense. D) Plasma-digestion; red blood cells-excretion; platelets-transport. Show Answer Correct Answer: C) Plasma-transport; red blood cells-carry oxygen; white blood cells-defense. 21. What happens to the water potential in root hair cells when there is a high concentration of minerals in the cell sap? A) It increases. B) It decreases. C) It remains the same. D) It becomes zero. Show Answer Correct Answer: B) It decreases. 22. The metal ion involved in the stomatal regulation is A) Iron. B) Magnesium. C) Zinc. D) Potassium. Show Answer Correct Answer: D) Potassium. 23. The movement of water through the apoplastic pathway is slower than through the symplastic pathway. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. What food substance is made by plants during photosynthesis? A) Carbon dioxide. B) Glucose. C) Granulated sugar. D) Oxygen. Show Answer Correct Answer: B) Glucose. 25. What is the major difference between xylem and phloem? A) Xylem transports sugars and organic compounds, while phloem transports water and minerals. B) Xylem and phloem have the same function of transporting sugars and organic compounds. C) Xylem transports water and minerals, while phloem transports sugars and organic compounds. D) Xylem and phloem both transport water and minerals. Show Answer Correct Answer: C) Xylem transports water and minerals, while phloem transports sugars and organic compounds. ← 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