Question

Phosphoenol pyruvate (PEP) is the primary $CO_2$ acceptor in:

• A. $C_4$ plants
• B. $C_2$ plants
• C. $C_3$ and $C_4$ plants
• D. $C_3$ plants

Answer 1

Answer: (A)

$C_4$ plants

Answer 2

PEP is $3 C$ compound which serves as primary $CO _{2}$ acceptor in the mesophyll cell cytoplasm of $C _{4}$ plants like maize, sugarcane, Sorghum etc.