This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 11 Transport In Plants – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 11 Transport In Plants Quiz 16 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which option best describes the spongy mesophyll? A) Single layer of closely packed cells with any minute openings called stomata. B) Layers of closely packed cells that contain numerous chloroplasts. C) Layer of irregularly shaped cells with numerous large intercellular air spaces. D) Contains the xylem and phloem. Show Answer Correct Answer: C) Layer of irregularly shaped cells with numerous large intercellular air spaces. 2. What blood vessel transports deoxygenated blood from the body to the heart? A) Vena Cava. B) Aorta. C) Pulmonary Vein. D) Pulmonary Artery. Show Answer Correct Answer: A) Vena Cava. 3. Xylem vessels are composed of solid cells with no end walls. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 4. Leaves with adaptations to arid conditions A) Leaves with thick waxy cuticles and rolled-up structures to retain moisture. B) Leaves with large surface areas to maximize photosynthesis. C) Leaves that are bright green to attract pollinators. D) Leaves that are thin and delicate to allow for quick water absorption. Show Answer Correct Answer: A) Leaves with thick waxy cuticles and rolled-up structures to retain moisture. 5. Why do unicellular organisms not require a transport system? A) They have tiny bodies thus very small body volumes. B) They have a large surface area to volume ratio. C) Most of their body is in contact with their surrounding. D) All of the above. Show Answer Correct Answer: D) All of the above. 6. The movement of molecules against a concentration gradient A) Simple diffusion. B) Facilitated diffusion. C) Active transport. D) Osmosis. Show Answer Correct Answer: C) Active transport. 7. A scientist is studying the effects of fertilizer on the rate of transpiration in tomato plants. Which of the following correctly describes the dependent variable for this experiment? A) Time. B) Height of tomato plants. C) Amount of fertilizer. D) Rate of transpiration. Show Answer Correct Answer: D) Rate of transpiration. 8. If you stand under a tree it is very hot. True or false A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 9. Why do plants need to open stomata?I. To get rid of excess CO$_{2}$II. To allow transpirationIII. To exchange gases with the environment A) I only. B) I and II only. C) II and III only. D) I, II and III. Show Answer Correct Answer: C) II and III only. 10. Which process initiates the tension that pulls water upward in xylem? A) Active pumping by xylem vessels. B) Capillary action in phloem tubes. C) Transpiration removing water from leaves. D) Root pressure pushing water upward. Show Answer Correct Answer: C) Transpiration removing water from leaves. 11. Which of the following vessels has thin muscle wall and a large lumen? A) Vein. B) Artery. C) Capillary. D) Aorta. Show Answer Correct Answer: A) Vein. 12. The root hairs are suited for absorbing water from the soil because A) They have large surface area. B) They have semi permeable membrane. C) They contain a solution of higher concentration than the surrounding water. D) All of these. Show Answer Correct Answer: D) All of these. 13. Which side of the heart has oxygenated blood? A) Top. B) Bottom. C) Left. D) Right. Show Answer Correct Answer: C) Left. 14. Root pressure is caused by A) Active loading of water molecules into xylem vessels by endordermis cells. B) Active loading of salts into xylem vessels by endodermis cells. C) Xylem vessels using energy to actively load water upwards. D) Movement of water molecules upwards in xylem vessels through osmosis. Show Answer Correct Answer: B) Active loading of salts into xylem vessels by endodermis cells. 15. Assertion:Osmosis is a special type of diffusion of water through a semi-permeable membrane.Reason:The net direction and rate of osmosis depends only on the pressure gradient. A) Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion. B) Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion. C) Assertion is true but Reason is false. D) Both Assertion and Reason are false. Show Answer Correct Answer: C) Assertion is true but Reason is false. 16. An example of an adaptation of desert plants to conserve water is (a) A) Large leaves. B) Presence of chlorophyll in the root. C) A. Thick cuticles and small stomata. D) Shallow root systems. Show Answer Correct Answer: C) A. Thick cuticles and small stomata. 17. The conduction is unidirectional in- A) Phloem. B) Xylem. C) Both. D) Non of the above. Show Answer Correct Answer: B) Xylem. 18. The form of sugar transported through phloem is A) Gliucose. B) Fructose. C) Sucrose. D) Ribose. Show Answer Correct Answer: C) Sucrose. 19. This is a substance that makes the cell wall very strong and impermeable. A) Starch. B) Lignin. C) Fibres. D) Cellulose. Show Answer Correct Answer: B) Lignin. 20. Which is the energy change during photosynthesis A) Sun to food. B) Solar energy to glucose. C) Light energy to chemical energy. D) Carbon dioxide to food. Show Answer Correct Answer: C) Light energy to chemical energy. 21. The Epidermis is a tissue found in the stem. Which is not a function of the epidermal layer? A) Protection of inner tissues. B) Reduction of water loss. C) Absorption of water. D) Prevent infection. Show Answer Correct Answer: C) Absorption of water. 22. Plant transports food made in the leaves to ..... A) Roots. B) Stem. C) Flowers. D) All of the above. Show Answer Correct Answer: D) All of the above. 23. Xylem transports organic compounds like sucrose from the leaves to other parts of the plant. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 24. The upward conduction of water and minerals by A) Phloem. B) Cambium. C) Xylem. D) Epidermis. Show Answer Correct Answer: C) Xylem. 25. Assertion:The loss of water in its liquid phase from the leaves is called guttation.Reason:Guttation takes place at night only. A) Both Assertion and Reason are true and the Reason is the correct explanation of the Assertion. B) Both Assertion and Reason are true but the Reason is not the correct explanation of the Assertion. C) Assertion is true but Reason is false. D) Both Assertion and Reason are false. Show Answer Correct Answer: C) Assertion is true but Reason is false. ← 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