In sugarcane plants,^{14}CO_2 is fixed into m | vedclass

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Question

(B) Sugarcane is a $C_4$ plant. In $C_4$ plants,the primary fixation of $CO_2$ occurs in the mesophyll cells.$CO_2$ reacts with phosphoenolpyruvate $(

Vedclass · Accepted Answer

Phosphoenolpyruvate carboxylase $(PEP-case)$

Vedclass · Answer

(B) Sugarcane is a $C_4$ plant. In $C_4$ plants,the primary fixation of $CO_2$ occurs in the mesophyll cells.$CO_2$ reacts with phosphoenolpyruvate $(PEP)$ to form oxaloacetic acid $(OAA)$,which is a $4$-carbon compound.This reaction is catalyzed by the enzyme phosphoenolpyruvate carboxylase,commonly known as $PEP-case$.$OAA$ is then converted into malic acid or aspartic acid,which are transported to the bundle sheath cells.Therefore,the enzyme responsible for the initial fixation of $CO_2$ in sugarcane is $PEP-case$.

In sugarcane plants,$^{14}CO_2$ is fixed into malic acid. Which enzyme is responsible for the fixation of $CO_2$ in this process?

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