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प्रश्न
Define the following term:
Phytohormones
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
How does chemical coordination occur in plants?
A plant hormone related with inhibition of senescence is
Apical dominance phenomenon is caused by
List five plant growth hormones and briefly describe their roles.
Answer the following question.
What are plant hormones? Name the plant hormones responsible for the following:
- Growth of stem
- Promotion of cell division
- Inhibition of growth
- Elongation of cells
Multiple choice question.
Which is employed for the artificial ripening of banana fruits?
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 |
IAA stands for ______.
A plant growth inhibitor hormone which causes wilting of leaves is ______.
The response by parts of the plant towards stimulus is called as ______.
