Plant Physiology

Welcome to your Plant Physiology

1. Transpiration is very low during the storms due to
2. Osmosis involves diffusion of
3. One of the synthetic auxin is
4. Marine fish when thrown under tap water bursts because of
5. Water will be absorbed by the root hairs when:
6. When cell is fully turgid, which of the following will be zero?
7. Stomata open during the day and close at night because
8. A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
9. Process of endosmosis stops
10. The phytohormone that helps in the germination of seeds is
11. A phytohormone existing in gaseous state is
12. When a plant wilts, the sequence of events is as follows:
13. Which one of the following pairs is not correctly matched?
14. Transpiration pull will be maximum under which of the following conditions?
15. Plants lose water by guttation when
16. Ethylene is used for
17. If the rate of transpiration becomes more than the rate of photosynthesis, plants will
18. Which of the following regulate closure of stomata?
19. Chlorophyll is present
20. Cell division in plants is promoted by
21. The hormone responsible for phototropism and geotropism is
22. The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
23. Which one of these reaction occurs during photosynthesis?
24. Which would do maximum harm to a tree?
25. Internodal elongation is associated with
26. In hot summer days, plant cooling is due to
27. A cell that lacks chloroplast does not
28. A plant hormone related with inhibition of senescence is
29. The phytohormone that prevents the germination of seeds is
30. Guttation is the elimination of excess of water from plants through
31. In the mechanism of opening and closing of stomata, the important factor is
32. To increase sugar production in sugarcanes, they are sprayed with
33. In the process of Osmosis in a cell:
34. Plasma membrane controls
35. The specific function of light energy in the process of photosynthesis is to
36. Which one of the following would not be a limiting factor for photosynthesis?
37. Osmosis involves
38. The rate of photosynthesis is not affected by
39. Compensation point means the condition
40. The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
41. Seeds when soaked in water imbibe in it because
42. Positive geotropism is exhibited by
43. NADP is expanded as
44. Which of the following is not an effect of ethylene?
45. A plant hormone for inducing Morphogenesis in plant tissue culture is


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