NEET 2023 · Class 11

Respiration in Plants

How many times decarboxylation occurs during each TCA cycle?

  1. (A)Thrice
  2. (B)Many
  3. (C)Once
  4. (D)Twice

The NCERT line that answers it

Verbatim line

It is followed by two successive steps of decarboxylation, leading to the formation of α-ketoglutaric acid and then succinyl-CoA.

Chapter
Respiration in Plants
Section
12.4.1 Tricarboxylic Acid Cycle
Page
5
Words matched
16 of 19

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 'two successive steps of decarboxylation' which directly and conclusively answers that decarboxylation occurs twice in the TCA cycle.

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