NEET 1996 · Class 11

Photosynthesis in Higher Plants

What will be the number of Calvin cycles to generate one molecule of hexose?

  1. (A)8
  2. (B)9
  3. (C)4
  4. (D)6

The NCERT line that answers it

Verbatim line

The fixation of six molecules of $\text{CO}_2$ and 6 turns of the cycle are required for the formation of one molecule of glucose from the pathway.

Chapter
Photosynthesis in Higher Plants
Section
11.7 WHERE ARE THE ATP AND NADPH USED?
Page
14
Words matched
13 of 13

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 fixation of six molecules of CO₂ and 6 turns of the cycle are required for the formation of one molecule of glucose', which directly and conclusively answers the question about the number of Calvin cycles needed for one hexose molecule.

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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.