PEP carboxylase has an advantage over RuBisCo | vedclass

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Question

(A) $PEP$ carboxylase ($PEP$ case) has a significant advantage over $RuBisCo$ because $PEP$ carboxylase does not bind with oxygen $(O_{2})$.$RuBisCo$

Vedclass · Accepted Answer

$RuBisCo$ combines with $O_{2}$ but $PEP$ carboxylase does not.

Vedclass · Answer

(A) $PEP$ carboxylase ($PEP$ case) has a significant advantage over $RuBisCo$ because $PEP$ carboxylase does not bind with oxygen $(O_{2})$.$RuBisCo$ has an affinity for both $CO_{2}$ and $O_{2}$. When it binds with $O_{2}$,it initiates photorespiration.Photorespiration is a wasteful process that consumes energy and releases $CO_{2}$ without producing sugars,thereby decreasing the overall photosynthetic yield.Since $PEP$ carboxylase is insensitive to $O_{2}$,it ensures efficient carbon fixation even in the presence of oxygen.

$PEP$ carboxylase has an advantage over $RuBisCo$. The advantage is:

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