Question

Why are guard cells in bean shaped?​

Answer 1

Explanation:

Bean/kidney-shape - The shape of guard cells is convenient for the closing and opening of the stoma to regulate gaseous exchange and release of water. ... In most aquatic plants, guard cells, and thus the stomata, are located on the upper surface of the leaf which allows for more water to be released into the environment.

Answer 2

$for \: the \: closing \: and \: opening \: of \: the \: stoma \\ to \: regulate \: gaseous \: exchange \: and \: release \\ of water.$