Stomata of desert plants remain closed during day time. How do they take up CO2 and perform photosynthesis ?
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Solution
Desert plants take in CO2 at night and store it in the form of an intermediate which is used during the day for photosynthesis (when the stomata are closed).
Also, the chlorophyll of the plant are located in stem as leaves are reduced to spines and stem takes the function of photosynthesis.