Photorespiration reaction catalyzed by RuBisCo is shown below:
$RuBP + O_{2} \rightarrow$ 3-Phosphoglycerate +X.
Identify "X" from the given options:

Question

Photorespiration reaction catalyzed by RuBisCo is shown below:$RuBP + O_{2} \rightarrow$ 3-Phosphoglycerate +X.Identify "X" from the given options:

Accepted Answer

Sol. [Key Concept: RuBisCO oxygenase activity (photorespiration)] During the process of photorespiration, RuBP binds with $O_{2}$ and RuBP instead of being converted to 2 molecules of PGA, forms one molecule each of phosphoglycerate and phosphoglycolate.Hence, in the given reaction, the " X " is 2-phosphoglycolate.

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