Phosphoenolpyruvate (PEP) is the primary C O 2 acceptor in:

Step-by-step solution

PEP is a 3C compound which serves as primary C O 2 acceptor in the mesophyll cell cytoplasm of C 4 plants like Maize, Sugarcane, Sorghum etc. PEP is able to rapidly fix carbon at very low concentrations of hydrogen carbonate in presence of Phosphoenolpyruvate carboxylase enzyme the addition of bicarbonate ( H C O 3 − ) to phosphoenolpyruvate ( P E P ) to form the four-carbon compound oxaloacetate and inorganic phosphate P E P + H C O 3 − → o x a l o a c e t a t e + P i