fix CO2 into organic acids during the night
Stomata close as the cells on their immediate boundary lose water. This changes their shape in such a way that the opening is reduced.
Diffusion, Respiration & Photosynthesis. These 3 processes will stop if stomata is closed.
Primarily, and in C3 plants, the stomata closed at night retards the loss of moisture when photosynthesis is not taking place.
That depends on whether or not the plant wants it to be open or closed.
Carbon Dioxide.
As humans plants also need oxygen to breathe they only take in carbon dioxide to do photosynthesis.So they wont do photosynthesis at night and so they only need to breathe. even though their stomata are closed at night some oxygen can go inside. and this is how plants breathe when their stomata are closed. pipidipo
It is widely known that CAM plants open their stomata at night time to fix the CO2 in form of organic acids. However, during the light reactions in daytime O2 is evolved while the stomata are closed and there is no way out. The question goes to the possible mechanism by which these plants can handle this high oxygen level during the daytime, while the stomata are closed. Do these plants have an oxygen accumulation and release system like that of CO2? Is such a mechanism studied or described elsewhere?
Diffusion, Respiration & Photosynthesis. These 3 processes will stop if stomata is closed.
The C4 plants tend to keep their stomata closed during the day to conserve water.
Primarily, and in C3 plants, the stomata closed at night retards the loss of moisture when photosynthesis is not taking place.
That depends on whether or not the plant wants it to be open or closed.
They are usually closed during these periods so that they wont loose any water because of transpiration.
midday
it is closed so no further water can be lost
Changes in the osmotic potential of gaurd cells make that stomata open or closed
Carbon Dioxide.
Closed.
opening their stomata and admitting C02 only at night