explain the structure of stomata
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Explanation:
Structure of stomata: Stomata are present in leaf epidermis. They regulate the process of transpiration and gaseous exchange. They are enclosed by two bean-shaped guard cells
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Structure:
The stomatal pores are very minute and are covered with crescent shaped guard cells.
Outer wall of guard cells are thin and the inner wall is thick. Each guard cell contains cytoplasm, a nucleus and plenty of chloroplasts.
There is a single large air chamber below the stomatal pore.
Functions of stomata:
The gaseous exchange (CO2and O2) between the intercellular spaces of plant cell and the outer air takes place through stomata during photosynthesis
During respiration plants receive O2 and release CO2through stomata.
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