This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Biology Chapter 11 Transport In Plants – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 11 Transport In Plants Quiz 9 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which is not a limiting factor affecting rate of photosynthesis? A) Carbon dioxide concentration. B) Water availability. C) Light intensity. D) Temperature. Show Answer Correct Answer: B) Water availability. 2. Which of the following plant vessels is living? A) Xylem. B) Phloem. C) All the above. D) None of the above. Show Answer Correct Answer: B) Phloem. 3. During which season do leaves become the source and roots become the sinks for sucrose and amino acids? A) Winter. B) Spring. C) Summer. D) Autumn. Show Answer Correct Answer: C) Summer. 4. Describe the process of water absorption through root hairs. A) Root hairs absorb water through evaporation from the leaves. B) Water enters root hairs through diffusion of nutrients from the soil. C) Water is absorbed through root hairs by osmosis, moving from soil to root cells due to concentration differences. D) Water is absorbed through root hairs by active transport from root cells to soil. Show Answer Correct Answer: C) Water is absorbed through root hairs by osmosis, moving from soil to root cells due to concentration differences. 5. Place these statements in the correct order.I. water enters root hairs by osmosisII. the solute concentration inside root hairs increasesIII. water enters xylem vessels by osmosisIV. mineral ions enter root hairs by active transport A) I $\rightarrow$ II $\rightarrow$ IV $\rightarrow$ III. B) I $\rightarrow$ IV $\rightarrow$ II $\rightarrow$ III. C) IV $\rightarrow$ II $\rightarrow$ I $\rightarrow$ III. D) IV $\rightarrow$ I $\rightarrow$ II $\rightarrow$ III. Show Answer Correct Answer: C) IV $\rightarrow$ II $\rightarrow$ I $\rightarrow$ III. 6. Transporting substances across a membrane from an area of lower concentration to an area of higher concentration requires-(a) (b) (c) (d) A) Energy. B) Phospholipid. C) Diffusion. D) Facilitated diffusion. Show Answer Correct Answer: A) Energy. 7. The transport system in plants comprises of the xylem and phloem. Food substances travel in the ..... and water and salts are mainly conducted in the ..... A) Xylem; phloem. B) Phloem; xylem. C) Vessels; sieve tubes. D) Vascular bundles:vessels. Show Answer Correct Answer: B) Phloem; xylem. 8. How does water enter a plant? A) Through the stomata. B) Through the roots. C) By active transport in root hair cells. D) By osmosis in root hair cells. Show Answer Correct Answer: D) By osmosis in root hair cells. 9. Describe two factors that affect the rate of transpiration in plants. A) Temperature and color of the leaves. B) Soil pH and plant height. C) Amount of sunlight and type of pot. D) Environmental factors and internal factors. Show Answer Correct Answer: D) Environmental factors and internal factors. 10. In Xylem conduction is ..... directional A) Bidirectional. B) Unidirectional. C) All the above. D) None of the above. Show Answer Correct Answer: B) Unidirectional. 11. What is the movement of sucrose and amino acids in the phloem from sources to sinks called? A) Transpiration. B) Translocation. C) Photosynthesis. D) Respiration. Show Answer Correct Answer: B) Translocation. 12. If the external solution balances the osmotic pressure of cytoplasm. It is said to be- A) Hypotonic. B) Hypertonic. C) Atonic. D) Isotonic. Show Answer Correct Answer: D) Isotonic. 13. Which of the following describes the distribution of xylem and phloem in the stems of dicotyledonous plants? A) The xylem vessels are surrounded by the phloem vessels. B) The phloem vessels are surrounded by the xylem vessels. C) The xylem vessels are above the xylem. D) The phloem vessels are above the xylem. Show Answer Correct Answer: A) The xylem vessels are surrounded by the phloem vessels. 14. True or False:root hairs can take up mineral salts agains their concentration gradient A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 15. Highest water potential is observed in case of A) Solution in a beaker. B) Cell sap. C) Pure water solvent. D) All of the above. Show Answer Correct Answer: C) Pure water solvent. 16. Xylem and phloem are examples of ..... tissue A) Spores. B) Nonvascular. C) Seeds. D) Vascular. Show Answer Correct Answer: D) Vascular. 17. Xylem translocates A) H$_{2}$O only. B) H$_{2}$O and mineral salts only. C) H$_{2}$O, mineral salts and some organic nitrogen only. D) H$_{2}$O, mineral salts, some organic nitrogen and hormones. Show Answer Correct Answer: D) H$_{2}$O, mineral salts, some organic nitrogen and hormones. 18. What is the fate of most of the oxygen produced by photosynthesis A) Evaporates. B) Diffuses out through the stomata. C) Stored in the leaf. D) None of the above. Show Answer Correct Answer: B) Diffuses out through the stomata. 19. Which of the following is responsible for the transport of sugars ONLY. A) Spongy mesophyll. B) Epidermis. C) Xylem. D) Phloem. Show Answer Correct Answer: D) Phloem. 20. Large molecules and ions can easily pass through the cell membrane without any help A) True-they pass right through. B) False-they need a protein channel. C) All the above. D) None of the above. Show Answer Correct Answer: B) False-they need a protein channel. 21. The ascent of sap takes places through A) Phloem. B) Cortex. C) Xylem. D) Epidermis. Show Answer Correct Answer: C) Xylem. 22. Translocation in plants refers to: A) Movement of water. B) Movement of food. C) Movement of gases. D) Movement of chloroplasts. Show Answer Correct Answer: B) Movement of food. 23. Which of the following is NOT true about plasma? A) Consist mainly of water. B) Pale yellow liquid. C) Transport blood. D) Transport waste materials. Show Answer Correct Answer: C) Transport blood. 24. Root pressure, capillarity, cohesion and adhesion all contribute to A) The movement of sucrose along the phloem. B) The ascent of water in xylem vessels. C) The mass flow of nutrients along sieve elements. D) The loss of water via the leaves. Show Answer Correct Answer: B) The ascent of water in xylem vessels. 25. What causes wilting in plants? A) Excess mineral ions. B) Loss of chlorophyll. C) Water loss is greater than uptake. D) Too much oxygen. Show Answer Correct Answer: C) Water loss is greater than uptake. ← 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 10Class 11 Biology Chapter 11 Transport In Plants Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books