Question:
The acceptor of atmospheric CO$_2$ in C$_3$ plants is ______.
The acceptor of atmospheric CO$_2$ in C$_3$ plants is ______.
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PEP is the CO$_2$ acceptor only in C$_4$ plants, not C$_3$.
Updated On: Feb 4, 2026
- RuBP and PEPA
- RuBP only
- PEPA only
- OAA or PEPA
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The Correct Option is B
Solution and Explanation
Step 1: Understanding C$_3$ pathway.
In C$_3$ plants, carbon fixation occurs through the Calvin cycle.
Step 2: CO$_2$ acceptor.
Ribulose-1,5-bisphosphate (RuBP) acts as the primary acceptor of atmospheric CO$_2$ in C$_3$ plants.
Step 3: Conclusion.
Therefore, the correct answer is RuBP only.
In C$_3$ plants, carbon fixation occurs through the Calvin cycle.
Step 2: CO$_2$ acceptor.
Ribulose-1,5-bisphosphate (RuBP) acts as the primary acceptor of atmospheric CO$_2$ in C$_3$ plants.
Step 3: Conclusion.
Therefore, the correct answer is RuBP only.
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