Question

what is stomatal apparatus... draw a labelled diagram?? ​

Answer 1

Answer:

. Stomatal apparatus is a pair of guard cells with or without surrounding subsidiary cells which function as a value to open or close a stomatal pore for gaseous exchange and transpiration. Each stoma is made of two bean-shaped cells called the guard cells

Answer 2

$\underline \mathbb{STOMATAL\:APPARATUS}$

》Stomata are the structures present in the epidermis of leaf . Stomata regulate the process of transpiration and gaseous exchange.

》Each stoma is composed of two Bean shaped cells known as guard cells with enclose stomata pore.

》 The outer walls of guard cells (away from stomatal pore) are thin and the inner walls (towards the stomatal pore )are highly thickened.

》The guard cells possess chloroplast and regulate the opening and closing of stomata.

》 Sometimes a few epidermal cells in the vicinity of the guard sells become specialised in their shape and size and are known as subsidiary cells.

》The stomatal aperture , guard cells and the surrounding subsidiary cells are together called stomatal apparatus.

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