What is the function of RuBisCO in photorespi | vedclass

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(A) In $C_3$ plants,the enzyme $RuBisCO$ (Ribulose$-1,5-$bisphosphate carboxylase-oxygenase) has an affinity for both $CO_2$ and $O_2$. During photore

Vedclass · Accepted Answer

Oxygenase

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(A) In $C_3$ plants,the enzyme $RuBisCO$ (Ribulose$-1,5-$bisphosphate carboxylase-oxygenase) has an affinity for both $CO_2$ and $O_2$. During photorespiration,the concentration of $O_2$ is higher or the ratio of $O_2$ to $CO_2$ favors the oxygenation reaction. In this process,$RuBisCO$ acts as an oxygenase,binding $O_2$ with $RuBP$ (Ribulose$-1,5-$bisphosphate) instead of $CO_2$,leading to the formation of one molecule of phosphoglycerate and one molecule of phosphoglycolate. Therefore,in photorespiration,$RuBisCO$ functions as an oxygenase.

What is the function of $RuBisCO$ in photorespiration?

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