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(C) Photorespiration is a wasteful process that occurs in $C_3$ plants because the enzyme $RuBisCO$ has an affinity for both $CO_2$ and $O_2$. In $C_3

Vedclass · Accepted Answer

It is a characteristic of $C_4$ plants.

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(C) Photorespiration is a wasteful process that occurs in $C_3$ plants because the enzyme $RuBisCO$ has an affinity for both $CO_2$ and $O_2$. In $C_3$ plants,when $O_2$ concentration is high,$RuBisCO$ binds with $O_2$ instead of $CO_2$,leading to photorespiration. This process involves three organelles: chloroplasts,peroxisomes,and mitochondria. It occurs only in the presence of light (daytime). $C_4$ plants have evolved a mechanism to minimize photorespiration by concentrating $CO_2$ around the $RuBisCO$ enzyme in bundle sheath cells,thus preventing $RuBisCO$ from binding with $O_2$. Therefore,stating that photorespiration is a characteristic of $C_4$ plants is incorrect.

Which of the following is incorrect regarding photorespiration?

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Photorespiration reaction catalyzed by $RuBisCo$ is shown below:
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