The stomata are areas on the underside of a leaf from which oxygen from photosynthesis exits, and carbon dioxide enters for photosynthesis.
Oxygen is released out of the plant through stomata as a product of photosynthesis.
The stomata are surrounded by guard cell which are tasked with the graduated opening and closing of the stomata. So, wide ope much carbon dioxide is diffusing into the cells and the rate of photosynthesis is high, but as the stomata work their way towards the closed position the rate of photosynthesis slows down until it can stop completely with no diffusion of CO2 through the closed stomata.
Carbon dioxide enters through stomata in leaves, which is needed for photosynthesis. Oxygen and water vapor also exit through the stomata as byproducts of the photosynthesis process.
There are none.
oxygen
The raw materials of photosynthesis that enters the leaf through the stomates or stomata is H2O or water
the stomata open
Carbon dioxide is the gas needed for photosynthesis that enters through the stomata of the cactus stem.
Stomata
A stomata is an opening allows gases to come through.
The three processes that stop when stomata are closed are photosynthesis, transpiration, and gas exchange. Stomata are small openings on the surface of leaves that regulate the movement of gases into and out of the plant. When stomata are closed, these processes are significantly reduced or halted.
A plant respirates through the stomata in its leaves. It also performs photosynthesis through the stomata as well.