The first reaction in photorespiration is _____.

Carboxylation

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Decarboxylation

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Oxygenation

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Phosphorylation

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Solution

The correct option is C Oxygenation
Photorespiration is the uptake of $O_{2}$ instead of $C O_{2}$ in presence of light by green plants. In this reaction, RuBisCo binds to $O_{2}$ and produce one molecule of 3-PGA and one molecule of 2-phosphoglycolic acid through oxygenation. The equation is as follows -

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C_{3}

C_{4}

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