NEET 1991 · Class 11

Photosynthesis in Higher Plants

Dark reactions of photosynthesis occur in

  1. (A)granal thylakoid membranes
  2. (B)stromal lamella membranes
  3. (C)stroma outside photosynthetic lamellae
  4. (D)periplastidial space

The NCERT line that answers it

Verbatim line

Within the chloroplasts, the membranes are sites for the light reaction, while the chemosynthetic pathway occurs in the stroma.

Chapter
Photosynthesis in Higher Plants
Section
11.10 FACTORS AFFECTING PHOTOSYNTHESIS
Page
20
Words matched
19 of 19

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

How this line gives the answer

0, emb=0.87, combined=0.922). Verified: high — The span explicitly states 'the chemosynthetic pathway occurs in the stroma,' which directly corresponds to dark reactions occurring in the stroma outside photosynthetic lamellae, matching option C.

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Question text is reproduced from the published NEET 1991 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.