The first product of CO_{2} fixation in C_{4} | vedclass

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Question

(A) In the $C_{4}$ pathway,the primary $CO_{2}$ acceptor is phosphoenolpyruvate $(PEP)$,which is a $3$-carbon molecule.This reaction is catalyzed by t

Vedclass · Accepted Answer

Oxaloacetic acid

Vedclass · Answer

(A) In the $C_{4}$ pathway,the primary $CO_{2}$ acceptor is phosphoenolpyruvate $(PEP)$,which is a $3$-carbon molecule.This reaction is catalyzed by the enzyme $PEP$ carboxylase.The first stable product formed after $CO_{2}$ fixation is a $4$-carbon compound called oxaloacetic acid $(OAA)$.Therefore,the correct option is $A$.

The first product of $CO_{2}$ fixation in $C_{4}$ pathway is

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