NEET 2025 · Class 11

Respiration in Plants

The complex II of mitochondrial electron transport chain is also known as

  1. (A)Cytochrome c oxidase
  2. (B)NADH dehydrogenase
  3. (C)Cytochrome bc1
  4. (D)Succinate dehydrogenase

The NCERT line that answers it

Verbatim line

- Complex II (Succinate dehydrogenase):** Located in the inner membrane.

Chapter
Respiration in Plants
Section
12.4.2 Electron Transport System (ETS) and Oxidative Phosphorylation

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 'Complex II (Succinate dehydrogenase)', which directly matches the correct answer and distinguishes it from the other options.

We did this for 1,565 questions.

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.

Question text is reproduced from the published NEET 2025 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.