NEET BIOLOGY

Detailed explanation-1: -Stomata are pores in the leaf that allow gas exchange. Each stoma is guarded by guard cells . When these guard cells open during photosynthesis, carbon dioxide enters the leaves and water vapour and oxygen goes out of the leaves. Stomata are present usually on the underside of the leaves.

Detailed explanation-2: -Stomata and Gas Exchange Each stoma is surrounded by two guard cells, which can open and close depending on environmental conditions. When moisture is plentiful, the guard cells swell with water, forcing the opening of the stoma open and allowing gas exchange to occur.

Detailed explanation-3: -Leaves. The exchange of oxygen and carbon dioxide in the leaf (as well as the loss of water vapor in transpiration) occurs through pores called stomata (singular = stoma). Normally stomata open when the light strikes the leaf in the morning and close during the night.

Detailed explanation-4: -Stomata (noun, “STO-mah-tah”, singular “stoma”) These are the small pores in plant stems or leaves that allow carbon dioxide in and oxygen and water vapor out. Each tiny hole is surrounded by a pair of cells called guard cells.

Detailed explanation-5: -Stomata are pores on the leaf surface, which are formed by a pair of curved, tubular guard cells; an increase in turgor pressure deforms the guard cells, resulting in the opening of the stomata.