Photosynthesis is an oxidation-reduction process, the material that gets oxidised is

_{2}

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NADP

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_{2}

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PGA

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Solution

The correct option is D H $_{2}$ O
Chemically photosynthesis is a redox reaction. During photosynthesis, two substrates (carbon dioxide and water) react in presence of light to produce two products (carbohydrates and oxygen). The water is oxidized in presence of light (photolysis) to release oxygen, whereas the carbon dioxide is reduced in dark to carbohydrates using energy trapped during light reaction.
So, the correct answer is option C.

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