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LIFE

Asked by hemant2020 24th May 2010, 8:47 PM
Answered by Expert
Answer:

Xerophytes close their stomata during the day in order to conserve water. Closed stomata reduces transpiration and hence reduce water loss. Their stomata are open during the night, and it is then that they take in carbon dioxide. They store it as malate and other, simple organic compounds. Crassulacean acid metabolism allows plants to close their stomata during the day in order to conserve water and carry out photosynthesis with CO2 that is taken up during the cool, humid night.

Answered by Expert 25th May 2010, 7:43 AM
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