This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 11 Transport In Plants – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 11 Transport In Plants Quiz 3 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the name of the part of the root that allows water and minerals enter? A) Root hairs. B) Epidermis. C) Phloem. D) Xylem. Show Answer Correct Answer: A) Root hairs. 2. What is the main driving force that moves water up through a plant? A) Osmosis. B) Cohesion and adhesion. C) Active transport. D) Diffusion. Show Answer Correct Answer: B) Cohesion and adhesion. 3. Cacti adaptation to hot climates A) Most cacti have large leaves to maximize photosynthesis. B) Photosynthesis occurs in the roots to absorb more water. C) Most cacti lack leaves; photosynthesis occurs in stems with small surface area to reduce evaporation. D) Cacti store water in their leaves to survive in hot climates. Show Answer Correct Answer: C) Most cacti lack leaves; photosynthesis occurs in stems with small surface area to reduce evaporation. 4. Which of the following is NOT a characteristic of cells found in the apical meristem? A) Undifferentiated cells. B) Lack vacoules. C) Thin cell walls. D) Large vacoules. Show Answer Correct Answer: D) Large vacoules. 5. Which of the following is a function of transpiration in plants? A) Food synthesis. B) Cooling of plant surface. C) Opening of stomata. D) Production of chlorophyll. Show Answer Correct Answer: B) Cooling of plant surface. 6. What is the final destination of water and minerals after they are transported across the cortex? A) Phloem. B) Root hair cells. C) Root xylem. D) Epidermis. Show Answer Correct Answer: C) Root xylem. 7. What is the function of root hairs? A) It is a place to store food. B) It has large surface area to absorb more water. C) All the above. D) None of the above. Show Answer Correct Answer: B) It has large surface area to absorb more water. 8. Transpirational pull is facilated by the cohesion-adhesion mechanism of water molecules. If water molecules sticks to other materials it is called: A) Cohesion. B) Adhesion. C) All the above. D) None of the above. Show Answer Correct Answer: B) Adhesion. 9. Explain how the absorption of water by roots helps photosynthesis to take place A) Roots anchor the plant in the soil. B) Roots transport water to the leaves. C) Roots have specialized cells to absorb water which is then transported to the leaves through the xylem for photosynthesis to take place. D) Roots have a large surface area to absorb light. Show Answer Correct Answer: C) Roots have specialized cells to absorb water which is then transported to the leaves through the xylem for photosynthesis to take place. 10. Which of the following has walls that are one cell thick and is a site for diffusion? A) Vein. B) Artery. C) Capillary. D) Aorta. Show Answer Correct Answer: C) Capillary. 11. What is the minimum number of cell membranes that a water molecule must move through in getting from soil into a xylem vessel- A) 0. B) 1. C) 2. D) 6. Show Answer Correct Answer: C) 2. 12. Xylem vessels ..... A) Contain no cytoplasm. B) Contain no nuclei. C) Contain no cytoplasm or nuclei. D) Contain cytoplasm and nuclei. Show Answer Correct Answer: C) Contain no cytoplasm or nuclei. 13. What is the effect of increasing light intensity in transpiration? A) It decreases transpiration rates. B) It increases transpiration rates. C) It doesn't impact the rate of transpiration. D) None of the above. Show Answer Correct Answer: B) It increases transpiration rates. 14. Which of the following is NOT a source? A) Roots. B) Cotyledon of germinating seed. C) Leaf. D) Stem. Show Answer Correct Answer: A) Roots. 15. Which of the following cells are found in pairs on the leaf surface? A) Subsidiary cells. B) Stomata. C) Guard cells. D) Epidermal cells. Show Answer Correct Answer: C) Guard cells. 16. How is water absorbed into a plant? A) By active transport into root hairs. B) By diffusion through stomata. C) By osmosis into root hairs. D) None of the above. Show Answer Correct Answer: C) By osmosis into root hairs. 17. Guard cells control the opening and closing of the stoma, if the guard cell is turgid what happens to the stoma? A) It opens. B) It closes. C) All the above. D) None of the above. Show Answer Correct Answer: A) It opens. 18. In a drought, stomata close to conserve water. Which consequence is most immediate for the water potential gradient? A) Gradient steepens from soil to leaf rapidly. B) Gradient flattens because leaf potential rises. C) Gradient reverses causing water to move to soil. D) Gradient remains unchanged despite stomatal closure. Show Answer Correct Answer: B) Gradient flattens because leaf potential rises. 19. What gas is RELEASED during photosynthesis? A) Carbon dioxide. B) Argon. C) Oxygen. D) Nitrogen. Show Answer Correct Answer: C) Oxygen. 20. The last thing all water and solute molecules must pass through before they can enter the vascular system and move upward to leaves is- A) Endodermis. B) Stoma. C) Epidermis. D) Root hair. Show Answer Correct Answer: A) Endodermis. 21. Which tissue is responsible for transporting water and minerals in plants? A) Phloem. B) Xylem. C) Chloroplast. D) Root hairs. Show Answer Correct Answer: B) Xylem. 22. What is the ideal solution for plant cells? A) Hypotonic solution. B) Isotonic solution. C) All the above. D) None of the above. Show Answer Correct Answer: A) Hypotonic solution. 23. What property of water allows it to be pulled along the xylem when water evaporates from the leaves? A) Adhesion. B) Cohesion. C) High boiling point. D) Good solvent. Show Answer Correct Answer: B) Cohesion. 24. Which of the following is a passive transport process in plant cells? A) Osmosis. B) Active transport. C) Endocytosis. D) Exocytosis. Show Answer Correct Answer: A) Osmosis. 25. Osmosis is a specific form of- A) Active transport. B) Secondary active transport. C) Faciliated diffusion. D) Diffusion. Show Answer Correct Answer: D) Diffusion. ← 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 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