What is the function of guard cells of the stomata?

🔑Key Points:
Stomata
-Stomata are the small openings found on the leaf epidermis.
-It can be found on stems and other plant parts.
-It can be seen beneath the light microscope.

✏️Stomata structure:
-Two guard cells surround each stoma.
-The kidney-shaped guards contain chloroplasts.
-In the stoma, there is a respiratory chamber.
-Guard cells are the cells which surround each stoma. They are present on the upper and lower epidermis of the leaf.
-Their main function is to open and close the stomata, help regulate transpiration, and protect the stomatal pore.
-Guard cell plays an important role in the gaseous exchange of plant leaves by opening and closing the pore through the stomata.
-In succulent plants, stomata open at night and close during the daytime.  through open stomata.