NEET PG DENTAL EXAM

Detailed explanation-1: -Stomata consist of microscopic pores, each flanked by a pair of guard cells. Guard cells can increase or decrease the size of the pore via changes in their turgor status, hence regulating both CO2 entry into the leaf and transpiration, or the loss of water from the leaf.

Detailed explanation-2: -Control of Transpiration Leaves are covered by a waxy cuticle on the outer surface that prevents the loss of water. Regulation of transpiration, therefore, is achieved primarily through the opening and closing of stomata on the leaf surface.

Detailed explanation-3: -Guard cells are pairs of epidermal cells that control gas diffusion by regulating the opening and closure of stomatal pores.

Detailed explanation-4: -Guard cells are cells surrounding each stoma. They help to regulate the rate of transpiration by opening and closing the stomata. Light is the main trigger for the opening or closing.