NEET 2022 Re · Class 11

Photosynthesis in Higher Plants

When one CO2 molecule is fixed as one molecule of triose phosphate, which of the following photochemically made, high energy chemical intermediates are used in the reduction phase?

  1. (A)2 ATP + 2 NADPH
  2. (B)1 ATP + 1 NADPH
  3. (C)1 ATP + 2 NADPH
  4. (D)2 ATP + 1 NADPH

The NCERT line that answers it

Verbatim line

The steps involve utilisation of 2 molecules of ATP for phosphorylation and two of NADPH for reduction per $\text{CO}_2$ molecule fixed.

Chapter
Photosynthesis in Higher Plants
Section
11.7 WHERE ARE THE ATP AND NADPH USED?
Page
13
Words matched
18 of 21

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 'utilisation of 2 molecules of ATP for phosphorylation and two of NADPH for reduction per CO2 molecule fixed', which directly matches option A (2 ATP + 2 NADPH) and distinguishes it from all other options.

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Question text is reproduced from the published NEET 2022 Re 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.