NEET 1996 · Class 11

Photosynthesis in Higher Plants

In C4 plants, CO2 combines with

  1. (A)phosphoenol pyruvate
  2. (B)phosphoglyceraldehyde
  3. (C)phosphoglyceric acid
  4. (D)ribulose diphosphate

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
15 of 18

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 'The primary CO2 acceptor is a 3-carbon molecule phosphoenol pyruvate (PEP)', which directly and conclusively answers the MCQ about what CO2 combines with in C4 plants.

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Question text is reproduced from the published NEET 1996 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.