Question

What are the function of guard cell

Answer 1

Guard cells are cells surrounding each stoma. They help to regulate the rate of transpiration by opening and closing thestomata. To understand how they function, study the following figures.

hope it helps.

Answer 2

it is present in the stomata that's helps in transpiration of carbon dioxide. .and excration of waste product from the body of plant cell like oxygen also control the evaporation in plant