Assertion: Each stoma is composed of two bean shaped cells known as guard cells.
Reason: Guard cells regulate the opening and closing of stomata.

Assertion: Each stomata is composed of two bean shaped cells known as guard cells. Reason: Guard cells regulate the opening and closing of stomata.

Guard cell regulate

Guard cell regulate

Guard cell regulate

How do guard cells regulate opening and closing of stomatal pores ?

How do the guard cells regulate opening and closing of stomatal pores?