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Botany MCQS[NEET-2021 to 2022]-Transport and Mineral Nutrition in Plants

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1. The water readily available to plants for absorption by roots is




2. The water potential of pure water at atmospheric pressure is




3. Loss of water from the stomata of leaves are known as




4. During rainy season wooden doors are difficult to open or closure because of




5. Plasmolysis occurs due to




6. The marine animals that kept in fresh water burst. It shows the process of




7. Cooling of plants is caused by




8. Active uptake of minerals by roots mainly depends on the




9. The hormone which signals the closure of stomata is




10. Water absorption takes place through




11. Which of the following is an anti-transpirant




12. What is the action spectrum of transpiration?




13. Which one of the following is used for measuring the rate of transpiration?




14. Transpiration is least in




15. Stomata open at night and close during day time in




16. Which of the following is necessary for biological nitrogen fixation?




17. The essential element for the synthesis of auxin is




18. The disease die back of shoots is caused due to the deficiency of the following microelements




19. Little leaf disease is due to the deficiency of




20. Hydroponics is




21. Molybdenum is involved in plant metabolism in




22. Plant require Fe and Mg for




23. Plant absorb the element nitrogen in the form




24. Bacteroid means




25. Which of the following bacterium brings about denitrification?




26. Ion can be accumulated against concentration gradient due to?




27. Which of the following is essential for Nitrogen Fixation by leguminous plants?




28. First experiments related to the method of hydroponics were done by




29. The most widely accepted theory accepted to explain the translocation of carbohydrates in higher plants




30. Which element is required for Nodulation in Legumes?




31. Which one of the following theories for ascent of sap was proposed by eminent Indian scientist J. C Bose?




32. Munch hypothesis is based on




33. The first process by which water enters into the seed coat when a seed is placed in a suitable environment for germination is




34. Which of the following plant material, is an efficient water imbibant?




35. Which of the following experiment is called physiological demonstration of osmosis?




36. Water is lost in a liquid state in some plants through hydathodes. These hydathodes




37. Passive absorption of water by the root system is the result of




38. Which of the following helps in ascent of sap?




39. The translocation of organic solutes in sieve tube members is supported by




40. Potometer works on the principle of




41. A nutritionally wild type organism, which does not require any additional growth supplement is known as




42. Which one of the following is a micronutrient?




43. The function of leghemoglobin in the root nodules of legumes is




44. Which of the following is a bacterium involved in denitrification




45. Which one of the following elements in plants is not remobilized ?




46. Which of the following is a rootless aquatic plant in which a portion of the leaf forms a tiny sac for trapping insects ?




47. Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing microorganism




48. The minerals involved in water-splitting reaction during photosynthesis are




49. If by radiation all nitrogenase enzyme are inactivated, then there will be no




50. In root nodules of legumes, leg-haemoglobin is important because it




51. Which of the following minerals activate the enzymes involved in respiration?




52. Which of the following elements is not required by plants for their normal healthy growth




53. In plant nutrition elements are classified as major or minor depending on




54. Non-essential element in plant is




55. Which element has not been proved to be essential in plants




56. Plant ash is an indication of




57. An essential element is




58. Hydroponics are




59. How the mineral contents of the plant known




60. Necrosis means