Question

meaning of stomata please​

Answer 1

Answer:

There are certain parts in all green plants which are essential and play a critical role in different life processes. Stomata is one of the essential parts that is involved in gaseous exchange. There are thousands of stomata on the surface of the leaves. Most of these are found on the lower side of the leaves.The stomata consist of minute pores called stoma surrounded by a pair of guard cells. Stomata, open and close according to the turgidity of guard cells. The cell wall surrounding the pore is tough and flexible. The shape of guard cells usually differs in both monocots and dicots, though the mechanism continues to be the same. Guard cells are bean-shaped and contain chloroplasts. They contain chlorophyll and capture light energy.

The subsidiary cells surround the guard cells. They are the accessory cells to guard cells and are found in the epidermis of plants. They are present between guard cells and epidermal cells and protect epidermal cells when the guard cells expand during stomatal opening.

The average number of stomata is about 300 per square mm of the leaf surface.

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Answer 2

Stomata are cell structures in the epidermis of tree leaves and needles that are involved in the exchange of carbon dioxide and water between plants and the atmosphere.

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