This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 11 Transport In Plants – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 11 Transport In Plants Quiz 1 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is false about the phloem tubes? A) They do not contain cytoplasm. B) They contain companion cells. C) Their end walls have not been completely broken down. D) They transport sugars only. Show Answer Correct Answer: A) They do not contain cytoplasm. 2. Water movement in a plant typically follows which sequence along the gradient? A) Atmosphere to leaf to stem to root. B) Soil to root to stem to leaves. C) Leaves to stem to roots to soil. D) Stem to leaves to roots to soil. Show Answer Correct Answer: B) Soil to root to stem to leaves. 3. The phenomenon whereby liquids will spontaneously move up tubes that have a very small bore. A) Transpiration Pull. B) Root Pressure. C) Capillarity. D) Diffusion. Show Answer Correct Answer: C) Capillarity. 4. What role do stomata primarily play in transpiration? A) They store water in spongy mesophyll. B) They act as pores allowing vapor diffusion. C) They condense vapor back to liquid. D) They pump water into xylem actively. Show Answer Correct Answer: B) They act as pores allowing vapor diffusion. 5. Which cells are alive but lack organelles? A) Xylem cells. B) Tracheid cells. C) Companion cells. D) Sieve tube cells. Show Answer Correct Answer: D) Sieve tube cells. 6. Which organelle is present in large number in companion cells? A) Ribosomes. B) Mitochondria. C) Vacuoles. D) Chloroplasts. Show Answer Correct Answer: B) Mitochondria. 7. Which process is responsible for the movement of water from the roots to the leaves in plants? A) Transpiration. B) Photosynthesis. C) Respiration. D) Glycolysis. Show Answer Correct Answer: A) Transpiration. 8. (a) is primarily transported through the xylem. A) Sugars. B) Oxygen. C) A. Water. D) Amino acids. Show Answer Correct Answer: C) A. Water. 9. The food synthesised in the plants is transported through phloem in the form of A) Sucrose. B) Starch. C) Glucose. D) Fats. Show Answer Correct Answer: A) Sucrose. 10. Which type of movement requires cellular energy? A) Osmosis. B) Active transport. C) Diffusion. D) Facilitated diffusion. Show Answer Correct Answer: B) Active transport. 11. Which feature of xylem vessels helps support the plant? A) Thin cell walls. B) Presence of cytoplasm. C) Thick walls with lignin. D) Large central vacuole. Show Answer Correct Answer: C) Thick walls with lignin. 12. The rate of diffusion is not dependent on which of the following factors A) Temperature. B) Light. C) Pressure. D) Size of particles. Show Answer Correct Answer: B) Light. 13. What are stomata? A) Tiny openings on the surface of leaves. B) A structure on roots that increases surface area. C) Transports water and minerals from roots to leaves. D) A process where water evaporates from leaves. Show Answer Correct Answer: A) Tiny openings on the surface of leaves. 14. What is the importance of transpiration in plants? A) It causes wilting of the plant. B) It increases the amount of chlorophyll. C) It helps in cooling the plant and in water uptake. D) It causes excessive water loss. Show Answer Correct Answer: C) It helps in cooling the plant and in water uptake. 15. Roots absorb minerals through a process called A) Activc transport. B) Guttation. C) Transpiration. D) Active transport. Show Answer Correct Answer: D) Active transport. 16. Transpiration does not involve the movement of water molecule by molecule into the leaf from the xylem. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 17. The absence of which of the following makes it impossible for xylem vessel elements to synthesise proteins? A) Nucleus. B) Enzymes. C) Smooth ER. D) Cross walls. Show Answer Correct Answer: A) Nucleus. 18. Which living component helps in the transport of food in phloem? A) Xylem vessels. B) Phloem fibres. C) Companion cells. D) Sclerenchyma. Show Answer Correct Answer: C) Companion cells. 19. Which environmental condition lowers the rate of transpiration? A) Abundant sunshine. B) High humidity. C) Windy day. D) High temperatures. Show Answer Correct Answer: B) High humidity. 20. Where are the proton pumps responsible for phloem loading located? A) On the membrane of companion cell. B) On the membrane of sieve tube. C) On the membranes of root cell. D) On the membranes of root hair. Show Answer Correct Answer: A) On the membrane of companion cell. 21. Which macro nutrient helps in opening and closing of stomata A) Iron (fe). B) Manganese (Mn). C) Zinc (Zn). D) None of these. Show Answer Correct Answer: D) None of these. 22. Name the following:Four components of xylem tissue A) Tracheidsvesslesxylem parenchyamaxylem fibers. B) Phloem. C) Plants. D) Sieve tubescompanion cellsploem parenchyamaploem fibers. Show Answer Correct Answer: A) Tracheidsvesslesxylem parenchyamaxylem fibers. 23. The osmotic expansion of a cell kept in water is chiefly regulated by: A) Mitochondria. B) Vacuoles. C) Plastids. D) Ribosomes. Show Answer Correct Answer: B) Vacuoles. 24. Which of the following is not a feature of active transport of solutes in plants? A) Requires ATP. B) Occurs against concentration gradient. C) Non-selective. D) Occurs through membranes. Show Answer Correct Answer: C) Non-selective. 25. As a tree begins transpiring in the morning, tension pressure occurs first in- A) Leaf. B) Branches. C) Root. D) All the regions of the tree. Show Answer Correct Answer: A) Leaf. 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