Stomatal Movements
Stomatal Movements
Stomata are the tiny pores present on the outer surface or epidermis of the leaves and in some cases also on the stem. These pores help in the exchange of gases,transpiration and photosynthesis. The opening and closing of stomata is controlled by Abscisic acid hormone.
Structure of Stomata
A stomata is consist of subsidiary cells, Guard cells and stomatal aperture. Subsidiary cells are the cells that surrounds the guard cells.Based on the number of subsidiary cells stomata can be of different types. Guard cells are bean shaped cells that surrounds the stomatal aperture. These cells regulate the closing and opening of stomata. Stomatal aperture is a tiny pore present on the surface through which exchange of material takes place.
Functions of Stomata
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The stomata plays an important role in | |||
| Right Option : C | |||
| View Explanation | |||
The opening and closing of stomata is controlled by which hormone ? | |||
| Right Option : C | |||
| View Explanation | |||
In plants like grasses the guard cells are of | |||
| Right Option : B | |||
| View Explanation | |||
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