This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 11 Transport In Plants – Quiz 31 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 11 Transport In Plants Quiz 31 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. All are correct except- A) Mycorrhizal fungi form a network around the young root and they penetrate the root cells. B) Mycorrhizae helps the plant to absorb water and minerals. C) Root provides sugar and nitrogenous organic compounds to the mycorrhizae. D) Pinus seed can germinate and establish without mycorrhizae. Show Answer Correct Answer: D) Pinus seed can germinate and establish without mycorrhizae. 2. How does a decrease in temperature affect the rate of transpiration? A) Increases transpiration rate. B) Decreases transpiration rate. C) All the above. D) None of the above. Show Answer Correct Answer: B) Decreases transpiration rate. 3. What is the function of the root cap? A) Protect the apical meristem. B) Undertake cell division. C) All the above. D) None of the above. Show Answer Correct Answer: A) Protect the apical meristem. 4. A watermelon has how much water? A) More than 92%. B) About 10 to 15%. C) 100%. D) 5 litres. Show Answer Correct Answer: A) More than 92%. 5. What is the name of the structure in plants that controls the opening and closing of stomata? A) Chloroplasts. B) Guard cells. C) Root hairs. D) Xylem cells. Show Answer Correct Answer: B) Guard cells. 6. Cell walls impregnated with water repellent suberin are found in the cells of- A) Endodermis. B) Pericycle. C) Trancheids. D) Root hairs. Show Answer Correct Answer: A) Endodermis. 7. A potato is an example of a modified ..... A) Modified root. B) Modified stem. C) Modified leaf. D) None of the above. Show Answer Correct Answer: B) Modified stem. 8. What does phloem transport? A) Water. B) Minerals. C) Fruit. D) Sugar. Show Answer Correct Answer: D) Sugar. 9. Which of the following choices is correct in relation to the translocation of organic material? A) Sugars are always translocated downwards or towards the base of the plant. B) The source is a site where sugars are produced, while sinks are sites where sugars are utilized. C) The sugar which is transported in all plants is sucrose. D) Sucrose travels in the phloem against a concentration gradient. Show Answer Correct Answer: B) The source is a site where sugars are produced, while sinks are sites where sugars are utilized. 10. What two forces are responsible for 90 percent of the upward flow of water through a plant? A) Capillary action and root pressure. B) Transpiration and cohesion. C) Gravity and osmosis. D) Diffusion and active transport. Show Answer Correct Answer: B) Transpiration and cohesion. 11. Water gets into root hair cells through the process of ..... A) Diffusion. B) Active transport. C) Osmosis. D) None of the above. Show Answer Correct Answer: C) Osmosis. 12. How does an increase in pollution affect the rate of transpiration? A) Increases transpiration rate. B) Decreases transpiration rate. C) All the above. D) None of the above. Show Answer Correct Answer: B) Decreases transpiration rate. 13. Water and dissolved minerals move up the xylem at the same speed. What concept does this contrast with? A) Bulk flow driven by pressure. B) Active transport using ATP. C) Facilitated diffusion down gradients. D) Osmosis across membranes. Show Answer Correct Answer: C) Facilitated diffusion down gradients. 14. Purple and red spots on leaves and delay in seed germination is caused by the deficiency of which nutrient? A) Zinc. B) Iron. C) Nitrogen. D) Phosphorus. Show Answer Correct Answer: D) Phosphorus. 15. This cell structure helps organisms maintain homeostasis by controlling what substances may enter or leave cells. A) Vacuole. B) Nucleus. C) Cell membrane. D) Cell wall. Show Answer Correct Answer: C) Cell membrane. 16. In which order does water pass through the cells of a plant, as the water travels from the roots toa leaf? A) Mesophyll cells $\rightarrow$ root hair $\rightarrow$ root cortex $\rightarrow$ xylem. B) Root cortex $\rightarrow$ root hair $\rightarrow$ xylem $\rightarrow$ mesophyll cells. C) Root hair $\rightarrow$ mesophyll cells $\rightarrow$ root cortex $\rightarrow$ xylem. D) Root hair $\rightarrow$ root cortex $\rightarrow$ xylem $\rightarrow$ mesophyll cells. Show Answer Correct Answer: D) Root hair $\rightarrow$ root cortex $\rightarrow$ xylem $\rightarrow$ mesophyll cells. 17. You need to measure the rate of transpiration in a leaf shoot. You should use ..... A) A ruler. B) A balance. C) A potometer. D) A syringe. Show Answer Correct Answer: C) A potometer. 18. What do the lungs provide the blood with? A) Oxygen. B) Blood. C) Hydrogen. D) Carbon dioxide. Show Answer Correct Answer: A) Oxygen. 19. Increasing light intensity, wind movement and temperature A) All decrease the rate of water uptake from a plant. B) Do not affect the rate of water uptake from a plant. C) All increase the rate of water uptake from a plant. D) None of the above. Show Answer Correct Answer: C) All increase the rate of water uptake from a plant. 20. The mineral whose defeciency causes poor growth with reduced rate of transpiration A) Zinc. B) Nitrogen. C) Phosphorus. D) Potassium. Show Answer Correct Answer: D) Potassium. 21. In a school garden, Priya noticed that the plants were growing well. She learned that root hair cells play a crucial role in helping plants thrive. What is the role of root hair cells? A) Store nutrients. B) Transport water to leaves. C) Absorb water and minerals from the soil. D) Provide structural support. Show Answer Correct Answer: C) Absorb water and minerals from the soil. 22. Which side of the heart pumps blood into the lungs? A) Right. B) Left. C) All the above. D) None of the above. Show Answer Correct Answer: A) Right. 23. Translocation occurs in phloem tubes. Aphids feed on the contents of phloem tubes. What type of food would be lacking in their diet? A) Amino acid. B) Fat. C) Sucrose. D) Water. Show Answer Correct Answer: B) Fat. 24. Which of these substances is/are transported by the xylem? A) Water only. B) Water and sucrose. C) Water and mineral salts. D) Mineral salts and sucrose. Show Answer Correct Answer: C) Water and mineral salts. 25. What is the function of root hairs in plants? A) The function of root hairs in plants is to absorb water and nutrients from the soil. B) To store energy for the plant. C) To facilitate photosynthesis in leaves. D) To provide structural support to the plant. Show Answer Correct Answer: A) The function of root hairs in plants is to absorb water and nutrients from the soil. ← 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