Guard cells. They are bean-shaped and this allows for the opening and closing of stomata.
Subsidiary cells form the peripheral part of stomata and gaurd cells form the stomatal pore
Chorophyll
Guard cells form the stomata.
Guard cells are cells on the edges of the stomata of a leaf. The stomata are very small pores that control water loss and keep the plant from drying out. When Abscisic Acid (ABA) - a stress hormone - is present, the Potassium ions (K+ ions) from the guard cells leave the guard cells for an unknown reason. This causes the stomata to close. Basically, guard cells assist stomata in opening/closing
The guard cell of stomata look like a balloon when it is turgid. Two such cells form the pore of the stomata. When both guard cells of a stomata are deflated by exo-osmosis the stomatal pore is closed.
The stomata are controlled by two epidermal cells called guard cells. When water flows in, the guard cells swell up and closes the stomata. When the water leaves, it becomes flaccid and opens the stomata.
On each stomata, there are guard cells. The guard cells control the amount of water released. Water escapes through the stomatas in the form of water vapor.
Stomata is already the plural form of stoma.
The guard cells of the stomata swell to form the stomatal pore
Guard Cells surround the stomata, and enable it to open or shut.
Epidermal cells surround the stomata.
Through the stomata carbon dioxide diffuses into the plant and oxygen and water vapor diffuse out of the plant. Guard cells control the opening and closing of the stomata. Used in arid climates to control water loss for instance.