PEP is primary $C O_{2}$ acceptor in

C_{4}

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C_{3}

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C_{2}

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both

C_{3}

and

C_{4}

plants

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Solution

The correct option is A $C_{4}$
In $C_{4}$ plants, initial fixation of $C O_{2}$ or carboxylation occurs in mesophyll cells. The chloroplasts of mesophyll cells possess enzyme PEP carboxylase (or PEP case) for initial fixation of $C O_{2}$ .The primary acceptor of $C O_{2}$ is phosphoenol pyruvate or PEP. It combines with $C O_{2}$ in the presence of PEP carboxylase (or PEP case) to form oxaloacetic acid or oxallocetate (OAA). So, the correct answer is 'C4'.

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Similar questions

Question 09
PEP is primary $C O_{2}$ acceptor in
(a) $C_{4}$ plants (b) $C_{3}$ plants
(c) $C_{2}$ plants (d) both $C_{3} a n d C_{4}$ plants

C O_{2}

C o_{2}

C_{3}

C_{4}

C O_{2}

C_{4}

C_{4}

C O_{2}

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