Botany-C4 Pathway
NEET Botany C4 Pathway MCQ Question
Type: MCQ-fact-Medium-Class 11
What is the primary CO2 acceptor in the C4 pathway?
A
Phosphoenol pyruvate (PEP)
B
Ribulose bisphosphate (RuBP)
C
Oxaloacetic acid (OAA)
D
Malic acid
Correct Answer
Option A
Detailed Explanation
In the C4 pathway, the primary CO2 acceptor is phosphoenol pyruvate (PEP), which is present in the mesophyll cells and is fixed by the enzyme PEP carboxylase. The text emphasizes that this process occurs before the formation of C4 acids like OAA.
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