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Question

Which of the following events does not occur exclusively during light reaction of photosynthesis?

A
Photolysis of water
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B
Conversion of light energy into chemical energy
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C
Absorption of solar energy
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D
Reduction of carbon dioxide
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Solution

The correct option is D Reduction of carbon dioxide
Photolysis of water to protons, electrons and O2 takes place during the light phase. Light energy is used in the formation of ATP and NADPH during light reaction. Solar energy is absorbed during light reaction. CO2 is not reduced during the light phase, it is reduced in the dark phase.

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