A) turgor pressure change
B) hormonal change
C) temperature change
D) all of the above
Correct Answer: D
Solution :
| Opening of Stomata | Closing of Stomata |
| 1. Increase in turgidity of guard cell cause opening of stomata 2. Rise in temperature cause stomatal opening 3. Cytokinins required for keeping the Stomata open | Due to loss of water from guard cell, the guard cell become flaccid and cause closing of stomata. Fall in temperature cause stomatal closing Abscisic acid brings about closing of stomata |
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