stomata of desert plants remain closed during day time, how do they take up CO2 to perform photosynthesis???
The deserts plants grow in dry conditions. In such plants, carbon dioxide is taken up by the leaves on the green stem through stomata, which remain open in the night. How ever , during the day, the stomata remain closed to conserve moisture. These plants carry out photosynthesis without much loss of water.
@Garima:- Good answer, keep contributing!!