Question

Dark reaction of photosynthesis doesn't need light. Do plants undergo dark reaction at night? Explain.

Answer 1

Photosynthesis is the process of absorbing light energy from the sun with water and CO2 assistance and transform it to oxygen and carbohydrate. There are light and dark reaction and they both happen in stroma of the chloroplasts or the Calvin Cycle. ... This does not mean that the dark reaction occurs in dark or at night..........

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Answer 2

Dark reaction does not mean that it occurs in the absence of light i.e., at night. Infact, it is the reaction occurring simultaneously with light reaction. It a chemical process occurring independent of light. This reaction is completely based on enzymes.