what do you mean by stomatal apparatus
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Stomata are small pores present in the epidermis of leaves. They regulate the process of transpiration and gaseous exchange. The stomatal pore is enclosed between two bean-shaped guard cells. The inner walls of guard cells are thick, while the outer walls are thin. The guard cells are surrounded by subsidiary cells. These are the specialised epidermal cells present around the guard cells. The pores, the guard cells, and the subsidiary cells together constitute the stomatal apparatus.
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Stomatal apparatus
Explanation:
Plants require carbon dioxide for photosynthesis. They take in carbon dioxide and give out oxygen. This exchange of gas happens through tiny pores on the underside of the leaves. These pores are called stomata. The stomata is made of the pore, two kidney-shaped guard cells and the subsidiary cells. The guard cells have a thick inner wall and thin outer wall. The guard cells are surrounded by subsidiary cells. All these three structures together are called the stomatal apparatus.
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