Question

In certain group of plant, stomata remains closed during day. How is food synthesized by such plants. Also name them.

Answer 1

these are xerophyte (desert plant)
they open their stomata during night because during day they would lose water due to transpiration.
they open it during night and convert CO2 in carbohydrates form and in the day they further process they food in presence of sun for light reaction and so on...

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Answer 2

Dear Student,

◆ Answer with explaination -

(i) Stomata are closed during day in -

• Stomata are closed during day in desert plants.

(ii) Photosynthesis in desert plants -

• CO2 is absorbed during night when stomata are open & stored as malic acid.
• This malic acid is split by chlorophyll during photosynthesis.

(ii) Examples of desert plants -

1. palo verde
2. joshua tree
3. desert ironwood
4. zebra cactus

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