NEET 1995 · Class 11

Photosynthesis in Higher Plants

The CO2 fixation during C4 pathway occurs in the chloroplast of

  1. (A)guard cells
  2. (B)bundle sheath cells
  3. (C)mesophyll cells
  4. (D)spongy parenchyma.

The NCERT line that answers it

Verbatim line

The primary $\text{CO}_2$ acceptor is a 3-carbon molecule **phosphoenol pyruvate (PEP)** and is present in the mesophyll cells.

Chapter
Photosynthesis in Higher Plants
Section
11.8 THE $\text{C}4$ PATHWAY
Page
15
Words matched
23 of 28

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states that the primary CO2 acceptor PEP is present in mesophyll cells, which directly answers where CO2 fixation occurs in the C4 pathway.

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Question text is reproduced from the published NEET 1995 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.