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Friday, 9 October

NEET UG 2025 · Botany · Question 171

NEET 2025 Botany, question 171

Question 171 of the NEET 2025 paper (code 45) is a Botany question from Photosynthesis in Higher Plants. Its idea, RuBisCO Carboxylation, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 4.

Updated 2026-10-08

Q171 · Botany

Which of the following statements about RuBisCO is true?

  1. 1It is active only in the dark.
  2. 2It has higher affinity for oxygen than carbon dioxide.
  3. 3It is an enzyme involved in the photolysis of water.
  4. 4It catalyzes the carboxylation of RuBP.Official answer

Official answer: option 4 · NTA final answer key

Same idea

The only question on RuBisCO Carboxylation

No other NEET paper from 2017–2026 tested this exact idea.

RuBisCO Carboxylation: every question and how it was framed

The chapter

Photosynthesis in Higher Plants in ten years of NEET

23 questions from 2017–2026, asked in 9 of 10 papers, about 2.2 a paper. Calvin and Hatch-Slack Cycles alone had 14.

Photosynthesis in Higher Plants: questions per paper

0362’171’180’192’202’213’223’233’242’255’26