TREE PHYSIOLOGY
PHOTOSYNTHESIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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only in the light
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only in the dark
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in either light or dark
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only in the presence of oxygen
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Detailed explanation-1: -Light-independent reactions – It is also called the dark reaction or Calvin cycle or C3 cycle. This reaction occurs both in the presence and absence of sunlight.
Detailed explanation-2: -Although the Calvin Cycle is not directly dependent on light, it is indirectly dependent on light since the necessary energy carriers (ATP and NADPH) are products of light-dependent reactions.
Detailed explanation-3: -The Calvin cycle, which is another name for the dark reactions of photosynthesis, consists of three steps: carbon fixation, reduction, and regeneration. The Calvin cycle is used to convert atmospheric CO2 into glucose, which is a sugar that plants use to store energy.
Detailed explanation-4: -When the reaction of photosynthesis does not require light energy is called as a light-independent or dark reaction. It is also called as a biosynthetic phase or Calvin cycle. It occurs in the stroma of the chloroplast.