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प्रश्न
ABA (Abscisic acid) is called a stress hormone. From where does this hormone get released in leaves?
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उत्तर
This hormone, abscisic acid gets released in the leaves from the mesophyll cells of the plant.
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संबंधित प्रश्न
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- Explain the process named above in Q.3(a)(i).
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A well-watered potted plant shows wilting of leaves on a hot sunny day.
An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:

Suggest a suitable control for this experiment.
An apparatus as shown below was set up to investigate a physiological process in plants. The setup was kept in sunlight for two hours. Droplets of water were then seen inside the bell jar. Answer the questions that follow:

Why was the pot covered with a plastic sheet?
Give Technical Term
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Write a note on Transpiration.
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Observe the diagram and answer the following;
![]() (i) |
![]() (ii) |
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