Question

How do desert plants carry out photosynthesis if their stomata remain closed during the day?

Answer 1

In desert plants, the stomata is open during night. During night, desert plants absorb carbon dioxide and form an intermediate. Then during day time when the stomata is closed to prevent loss of water, they use this stored carbon dioxide to perform photosynthesis.

Answer 2

Desert plants take up Carbon dioxide at night and prepare an intermediate which is acted upon by the energy absorbed by the chlorophyll during the day.