The first CO 2 acceptor in the mesophyll of C 4 plants is the compound:

🔬 Biology · Photosynthesis in Higher Plants · NEET

The first CO2 acceptor in the mesophyll of C4 plants is the compound:

Answer: Phosphoenolpyruvate.

A Ribulose bisphosphate
B Oxaloacetic acid
C Phosphoenolpyruvate
D Glyceraldehyde phosphate

Correct answer: C. Phosphoenolpyruvate

Explanation: In C4 mesophyll cells, PEP (phosphoenolpyruvate) accepts CO2 to form the 4-carbon oxaloacetate.

Simplified photosynthesis diagram: light energy, CO₂, and H₂O enter the leaf and are converted in the chloroplast into glucose and O₂.

Concept context

Light reactions, the Calvin cycle, C 3 /C 4 /CAM pathways, photorespiration, and factors affecting the rate of photosynthesis. One of the highest-yield NEET chapters.

Read the full Photosynthesis in Higher Plants notes →

The first CO<sub>2</sub> acceptor in the mesophyll of C<sub>4</sub> plants is the compound:

Concept context

More Photosynthesis in Higher Plants questions