Which is the primary CO 2 fixation product in C4 plants?
AOAA
BPEP
CPGA
DRuBP
Answer:
A. OAA
Read Explanation:
Phosphoenolpyruvate (PEP) is the 3-Carbon compound and acts as the primary CO2 acceptor in the mesophyll cells of C4 plants, leading to the formation of OAA (Oxaloacetic acid), C4 acid.
The enzyme PEP carboxylase or PEPcase catalyses this reaction.
