NEET 2023 · Class 11

Plant Growth and Development

Which hormone promotes internode/petiole elongation in deep water rice?

  1. (A)Kinetin
  2. (B)Ethylene
  3. (C)2, 4-D
  4. (D)GA3

The NCERT line that answers it

Verbatim line

Ethylene promotes rapid internode/petiole elongation in deep water rice plants.

Chapter
Plant Growth and Development
Section
13.4.3 Physiological Effects of Plant Growth Regulators
Page
11
Words matched
10 of 10

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 'Ethylene promotes rapid internode/petiole elongation in deep water rice plants,' which directly matches the question's specific biological fact and distinguishes ethylene from the other options.

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Every one traced to the exact sentence in NCERT that answers it, including 90% of the 2026 paper. Sit a mock on the real NEET 2027 computer interface and every mark you drop comes back with its line attached.

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Question text is reproduced from the published NEET 2023 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.