It is because guard cells control movements of CO2 , H2O and O2 just like guard on a gate.they open and close at specific times to regulate movements .
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.
The kidney shaped cells that enclose stomata are called guard cells.
The two guard cells one either side contract to open and close stoma.
I think it is Cell membrane
Guard Cells surround the stomata, and enable it to open or shut.
Stomatal pores in plants regulate the amount of water and solutes within them by opening and closing their guard cells using osmotic pressure. Guard cells and adjacent subsidiary cells are involved in opening and closing of stomata.
These are called the guard cells.
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.
guard cells
for bad people
The kidney shaped cells that enclose stomata are called guard cells.
stomata
The two guard cells one either side contract to open and close stoma.
I think it is Cell membrane
Guard Cells surround the stomata, and enable it to open or shut.
guard cells
The opening is called a stomata, which is regulated by two guard cells.