This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Biology > Class 11 Biology Chapter 11 Transport In Plants – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Biology Chapter 11 Transport In Plants Quiz 8 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The movement of water through the xylem is mostly: A) Downward. B) Upward. C) Circular. D) Lateral. Show Answer Correct Answer: B) Upward. 2. The rate of transpiration increases with A) Dry air. B) High atmospheric CO2 level. C) Low water content of leaf. D) Shedding of leaves. Show Answer Correct Answer: A) Dry air. 3. Unloading of mineral ions occurs at the fine vein endings through- A) Diffusion only. B) Active transport only. C) Diffusion and active transport. D) Facilitated diffusion and active transport. Show Answer Correct Answer: A) Diffusion only. 4. Tia looked at a leaf under a microscope and noticed a number of pores on its surface. These pores are called ..... A) Chlorophyll. B) Veins. C) Cells. D) Stomata. Show Answer Correct Answer: D) Stomata. 5. Apakah maksud transpirasi? A) Proses kehilangan air dalam bentuk wap air dari permukaan tumbuhan ke udara secara penyejatan. B) Proses menggunakan air oleh akar tumbuhan. C) Proses pengeluaran air oleh tumbuhan di permukaan daun melalui hidatod. D) Proses penukaran tenaga cahaya daripada matahari kepada tenaga biokimia. Show Answer Correct Answer: A) Proses kehilangan air dalam bentuk wap air dari permukaan tumbuhan ke udara secara penyejatan. 6. What is the effect of high salt concentration on plant cell transport? A) No effect. B) Increases glucose transport. C) Increases water uptake. D) Decreases water uptake. Show Answer Correct Answer: D) Decreases water uptake. 7. Why are pits important in xylem vessel elements? A) Store sugars during low transpiration rates. B) Anchor vessels to surrounding parenchyma. C) Block embolisms with thick lignin plates. D) Permit lateral water movement between elements. Show Answer Correct Answer: D) Permit lateral water movement between elements. 8. What causes diffusion? A) The constant, random motion of molecules. B) Magnetic attraction between atoms. C) The nuclear forces that hold atoms together. D) The tendency of atoms to form chemical bonds with one another. Show Answer Correct Answer: A) The constant, random motion of molecules. 9. Define the term "Transpiration" . A) Exchange of gases between the leaf and atmosphere. B) Loss of water vapour from the leaves and stems of the plant. C) Movement of water from the roots to the leaves. D) Movement of water through the cells of the leaf. Show Answer Correct Answer: B) Loss of water vapour from the leaves and stems of the plant. 10. Diffusion is the movement of substances A) From an area of higher concentration to lower concentration. B) From an area of lower concentration to lower concentration. C) From an area of lower concentration to higher concentration. D) From an area of higher concentration to higher concentration. Show Answer Correct Answer: A) From an area of higher concentration to lower concentration. 11. How do plants adapt to reduce water loss? A) By having a thicker cuticle and closing stomata during the hottest parts of the day. B) By increasing the number of stomata on the upper leaf surface. C) By growing larger leaves to capture more sunlight. D) By absorbing more water from the soil. Show Answer Correct Answer: A) By having a thicker cuticle and closing stomata during the hottest parts of the day. 12. How do mineral ions enter a plant? A) By osmosis in root hair cells. B) Through the stomata. C) Through the roots. D) By active transport in root hair cells. Show Answer Correct Answer: D) By active transport in root hair cells. 13. What happens to water moving via the apoplastic route when it reaches the endodermis? A) It evaporates. B) It moves via the symplastic route. C) It stops moving. D) It leaks out of the root. Show Answer Correct Answer: B) It moves via the symplastic route. 14. Translocation is the A) Transport of water in the phloem. B) Transport of water in the xylem. C) Transport of sugar in the phloem. D) Transport of sugar in the xylem. Show Answer Correct Answer: C) Transport of sugar in the phloem. 15. Where is food stored in sugar cane? A) Stem. B) Flowers. C) Seeds. D) Roots. Show Answer Correct Answer: A) Stem. 16. Which of the following is NOT part of the symplastic pathway in plants? A) Cytoplasm of root hairs. B) Plasmodesmata. C) Cell surface membrane of cortical cells. D) Lumen of xylem cells. Show Answer Correct Answer: D) Lumen of xylem cells. 17. What is the process of upward movement of a substance, especially liquids, called? A) Adhesion. B) Capillary Action. C) Transpiration Pull. D) Root Pressure. Show Answer Correct Answer: B) Capillary Action. 18. What is the plant vessel responsible for transporting water? A) Xylem. B) Phloem. C) All the above. D) None of the above. Show Answer Correct Answer: A) Xylem. 19. What role does cohesion play in water transport through xylem? A) Water molecules attract each other in a continuous column. B) Air bubbles are filtered out by pits. C) Mineral ions move independently of water. D) Water molecules stick to cellulose surfaces. Show Answer Correct Answer: A) Water molecules attract each other in a continuous column. 20. Water movement in cells involves not only passing along cell walls but also through the cells. A) As the cell loses water, turgor pressure falls, causing water in the cell wall to enter the vacuole and restore turgor pressure. B) Water movement is solely dependent on the cell wall structure. C) Turgor pressure increases as the cell gains water, preventing water from entering the vacuole. D) Water movement is not affected by the vacuole's state. Show Answer Correct Answer: A) As the cell loses water, turgor pressure falls, causing water in the cell wall to enter the vacuole and restore turgor pressure. 21. Read the following statements and select the correct option.Statement 1:Plasmolysis is bursting of cell membrane when a cell is kept in a hypertonic SolutionStatement 2:hypertonic solution causes endosmosis. A) Both statements 1 and 2 are correct. B) Statement 1 is correct but statement 2 is incorrect. C) Statement 1 is incorrect but statement 2 is correct. D) Both statements 1 and 2 are incorrect. Show Answer Correct Answer: D) Both statements 1 and 2 are incorrect. 22. Which is the smallest of the three(3) blood vessels? A) Veins. B) Arteries. C) Capillaries. D) None of the above. Show Answer Correct Answer: C) Capillaries. 23. The xylem is responsible for the transport of water, transport of minerals, and providing structural support for the plant, but it is NOT responsible for the transport of (a) . A) Transport of water. B) A. Transport of sugars. C) Transport of minerals. D) Structural support for the plant. Show Answer Correct Answer: B) A. Transport of sugars. 24. Which option best describes the vascular bundle? 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: D) Contains the xylem and phloem. 25. How does higher temperature affect the rate of transpiration? A) Transpiration stops at higher temperatures. B) Higher temperature increases the rate of transpiration. C) Higher temperature decreases the rate of transpiration. D) Temperature has no effect on transpiration. Show Answer Correct Answer: B) Higher temperature increases the rate of transpiration. 26. ATP and protein is supplied to companion cells via A) Sieve tubes. B) Porous wall. C) Cell wall. D) Vascular tissue. Show Answer Correct Answer: A) Sieve tubes. 27. In Facilitated diffusion the movement of substance across the cell membrane is aided by ..... i A) Fats. B) Transport protein. C) Carrier protein. D) None of the above. Show Answer Correct Answer: B) Transport protein. 28. Cohesion-tension during leaf water movement is initiated when water evaporates from which location? A) Xylem vessel lignified walls. B) Guard cell vacuoles membranes. C) Mesophyll cell walls surfaces. D) Phloem sieve plates pores. Show Answer Correct Answer: C) Mesophyll cell walls surfaces. 29. The phloem tissue consists of sieve tubes and companion cells, all of which are living cells. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 30. Which of the following is NOT a characteristic feature of xylem vessels? A) End walls. B) Cells end to end. C) Thick cellulose cell walls. D) No cell contents ( hollow). Show Answer Correct Answer: A) End walls. 31. If a plasmolysed cell has OP = 10, TP =-2, its DPD will be- A) 10. B) -2. C) 8. D) 12. Show Answer Correct Answer: D) 12. 32. What is the process by which water is initially absorbed by the roots? A) Evaporation. B) Diffusion. C) Osmosis. D) Transpiration. Show Answer Correct Answer: C) Osmosis. 33. The movement of water through a semi-permeable membrane is called? A) Diffusion. B) Cell membrane. C) Respiration. D) Osmosis. Show Answer Correct Answer: D) Osmosis. 34. This is not a cell of the xylem tissue. Identify this cell A) Vessels. B) Sieve tubes. C) Tracheids. D) Xylem fibres. Show Answer Correct Answer: B) Sieve tubes. 35. During plasmolysis what occurs? A) Water moves inside the cell until equilibrium is reached. B) Movement of water occurs across the membrane from an area of low water potential to high water potential. C) O. P. of cell remains the same. D) Movement of water occurs across the membrane from an area of higher water potential to lower water potential. Show Answer Correct Answer: A) Water moves inside the cell until equilibrium is reached. 36. Phloem transports substances made in the plant, such as minerals and inorganic ions. A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 37. Organic food material that contained in phloem sap. A) Amino acid and magnesium. B) Amino acid and sucrose. C) Sucrose and nitrate. D) Sucrose and zinc. Show Answer Correct Answer: B) Amino acid and sucrose. 38. Why can vascular plant grow much taller than non-vascular plants? A) They have a strong root system. B) They need little water. C) They need much sunlight. D) They can transfer nutrients higher. Show Answer Correct Answer: D) They can transfer nutrients higher. 39. Diffusion is the natural movement of molecules from: A) Areas of high concentration to areas of low concentration. B) Cold to hot environments. C) Gaseous to liquid environments. D) Areas of low concentration to areas of high concentration. Show Answer Correct Answer: A) Areas of high concentration to areas of low concentration. 40. Water potential of a cell is lowered by the- A) Addition of heat. B) Addition of solutes. C) Removal of solutes. D) Addition of water. Show Answer Correct Answer: B) Addition of solutes. 41. Transpiration and root pressure cause water to rise in plants by:AIPMT 2015 A) Pulling and pushing it, respectively. B) Pushing it upward. C) Pushing and pulling it, respectively. D) Pushing it upward. Show Answer Correct Answer: A) Pulling and pushing it, respectively. 42. What is the apparatus used to measure transpiration rate? A) Manometer. B) Barometer. C) Hygrometer. D) Potometer. Show Answer Correct Answer: D) Potometer. 43. Which process does translocation use? A) Active transport. B) Osmosis. C) Diffusion. D) None of the above. Show Answer Correct Answer: A) Active transport. 44. The primary function of casparian strips is to- A) Force water and minerals through the membranes of endodermal cells. B) Prevent entry into the stele solely through the apoplast. C) Provide regulation for water and minerals movement in the plants. D) All. Show Answer Correct Answer: D) All. 45. Under what conditions will the rate of transpiration be reduced? A) High temperaturehigh wind speed. B) High humiditylow wind speed. C) Low temperaturehigh wind speed. D) Low humiditylow wind speed. Show Answer Correct Answer: B) High humiditylow wind speed. 46. Hydrophilic means ..... A) Lipid soluble. B) Water-fearing. C) Nonpolar. D) Water-loving. Show Answer Correct Answer: D) Water-loving. 47. Which of these is NOT a factor affecting transpiration? A) Temperature. B) Wind. C) Sunlight. D) Leaf Type. Show Answer Correct Answer: D) Leaf Type. 48. What is the difference between dicot and monocot roots? A) Dicots have a tap root system, monocots have fibrous roots. B) Monocots have a tap root system, dicots have fibrous roots. C) Both have the same root system. D) Dicots have deeper roots than monocots. Show Answer Correct Answer: A) Dicots have a tap root system, monocots have fibrous roots. 49. The main vein running down a dicot leaf is called the A) Central xylem. B) Main vein. C) Mid rib. D) Vascular tissue. Show Answer Correct Answer: C) Mid rib. 50. Which part of the plant loses more water? A) The roots of the plant. B) The stem of the plant. C) The upper surface of the leaf. D) The lower surface of the leaf due to the presence of stomata. Show Answer Correct Answer: D) The lower surface of the leaf due to the presence of stomata. 51. Movement of sugar from source to other parts of plant is acheieved through ..... ? A) Active transport. B) Mass flow. C) Diffusion. D) Capillary action. Show Answer Correct Answer: B) Mass flow. 52. The movement of particles down in a concentration gradient (from a high concentration to a low concentration) is- A) Active transport. B) Osmosis. C) Transpiration. D) Diffusion. Show Answer Correct Answer: D) Diffusion. 53. The correct relationship between wind speed and the rate of transpiration of plants. A) The wind speed is not affecting the rates oftranspiration. B) As the wind speed increase, the rate oftranspiration increase. C) As the wind speed decrease the rate oftranspiration increase. D) As the wind speed increase, the rate oftranspiration decrease. Show Answer Correct Answer: B) As the wind speed increase, the rate oftranspiration increase. 54. What system do the xylem and phloem form? A) Nervous system. B) Conducting system. C) Transporting system. D) All of these. Show Answer Correct Answer: B) Conducting system. 55. Distinguish between xylem vessels and phloem tubes. A) Xylem transports food while phloem transports water. B) Xylem transports water while phloem transports food. C) Both transport food only. D) Both transport water only. Show Answer Correct Answer: B) Xylem transports water while phloem transports food. 56. Which of the following BEST describes translocation? A) Movement of sugar in a plant. B) Movement of organic materials through a plant. C) Movement of amino acids through a plant. D) None of the above. Show Answer Correct Answer: B) Movement of organic materials through a plant. 57. Transpiration process involves water loss from cell walls, which is replaced by drawing water from xylem vessels in the nearest vein. A) Water is lost from the leaves and replaced by drawing water from the roots. B) As a result of water loss, water is pulled through the xylem vessels and up the stem from the roots. C) Transpiration leads to the absorption of nutrients from the soil. D) Water is stored in the leaves to prevent loss during transpiration. Show Answer Correct Answer: B) As a result of water loss, water is pulled through the xylem vessels and up the stem from the roots. 58. Where do pits typically form in xylem walls? A) Locations of former plasmodesmata. B) Random breaks in lignin spirals. C) Regions with extra cellulose layers. D) Sites of nucleus attachment points. Show Answer Correct Answer: A) Locations of former plasmodesmata. 59. What role does osmosis play in water absorption? A) Osmosis facilitates the absorption of water by moving it from areas of low solute concentration into cells with higher solute concentration. B) Osmosis prevents water from entering cells with high solute concentration. C) Osmosis is the process of actively pumping water into cells regardless of solute concentration. D) Osmosis only occurs in plant cells and does not affect water absorption in animals. Show Answer Correct Answer: A) Osmosis facilitates the absorption of water by moving it from areas of low solute concentration into cells with higher solute concentration. 60. What type of cells are found in plant roots to help absorb water and minerals? A) Spongy mesophyll cells. B) Root hair cells. C) Palisade cells. D) Stomata. Show Answer Correct Answer: B) Root hair cells. ← PreviousNext →Related QuizzesScience QuizzesClass 11 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books