Question

Explain why plants growing in desert take up carbondioxide at night and utilise it during the day in the synthesis of cabohydrates.

Answer 1

The trees' leaves take in carbon dioxide and expel oxygen and, wastefully, their water vapor during the hot day, as they carry out the process of photosynthesis. The thrifty agaves and yuccas, by contrast, take in - and chemically store in an organic acid - carbon dioxide and expel oxygen and water vapor at night. With dawn, when the sunlight becomes available as fuel, they close their stomata to minimize evaporation, release their carbon dioxide and proceed with photosynthesis.
Unlike trees, which have leaves that open their stomata during the heat of desert days and close them during the cool of the night, the agaves and yuccas have leaves that close their stomata during the day and open them at night.

Hope dis helps ya.. :)

Answer 2

Heya !!!

Here's your answer !!!

➡Xerophytes (desert plants) are the plants adapted to survive the arid conditions by taking up the limited available water for their needs...

➡Hence , they must prevent the loss of water as the availability of water is extremely low in such Arid condition...

➡The gaseous exchange that occurs during the taking of carbon dioxide occurs through the stomata...

➡Stomata is a also a means for transpiration which means evaporation of water through the stomatal aperture of the stomata...

➡The rate of transpiration is higher in extremely hot conditions...

➡If the gaseous exchange occur during day time , plant would loss water through transpiration ....

➡In order to prevent the loss of water , desert plants take up carbon dioxide during night time to perform photosynthesis during the day time...

Hope this helps you :)

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