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प्रश्न
Define the following term:
Phytohormones
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उत्तर
Plant hormones are known as phytohormones. These are organic molecules that serve as mediators, similar to animal hormones, to facilitate the coordination of a variety of cellular activities within a plant.
संबंधित प्रश्न
Which of the following hormones regulate stomatal colour?
Common gibberellin is
Multiple choice question.
How many molecules of ATP are required to fix one molecule of nitrogen?
Which hormone promotes the production of male flowers in Cucurbits?
The active ingredient of Agent Orange is an egual mixture of two phenoxy herbicides ____________.
Which hormone causes Bakanae disease of rice?
Match the following lists and select the correct option.
| List I | List II | ||
| i. | 2,4-D | a. | Promotes senescence and ripening of fruits |
| ii. | ABA | b. | DelaysJeaf senescence |
| iii. | Gibberellins | c. | Increases the length of the sugarcane stem |
| iv. | Ethylene | d. | Kills dicotyledonous weeds without affecting mature monocotyledonous plants |
| e. | Stimulates the closure of stomata |
Name the plant hormones responsible for the following
- elongation of cells
- growth of stem
- promotion of cell division
- falling of senescent leaves.
A plant growth inhibitor hormone which causes wilting of leaves is ______.
Differentiate between:
Stimulus and response
