Biology, asked by somaallhit, 10 months ago

write a short note on stomatal transpiration........

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Answered by Anonymous
4

Answer:

Transpiration is the process of water movement through a plant and its evaporation from aerial parts, such as leaves, stems and flowers. Water is necessary for plants but only a small amount of water taken up by the roots is used for growth and metabolism. The remaining 97–99.5% is lost by transpiration and guttation.[1] Leaf surfaces are dotted with pores called stomata, and in most plants they are more numerous on the undersides of the foliage. The stomata are bordered by guard cells and their stomatal accessory cells (together known as stomatal complex) that open and close the pore.

Water is passively transported into the roots and then into the xylem.

The forces of cohesion and adhesion cause the water molecules to form a column in the xylem.

Water moves from the xylem into the mesophyll cells, evaporates from their surfaces and leaves the plant by diffusion through the stomata.

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Answered by Anonymous
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