Fundamentholfundamenthol
NEET2025Biology
Q.

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

  1. A

    NADH dehydrogenase

  2. B

    Cytochrome bc

  3. C

    Succinate dehydrogenase

  4. D

    Cytochrome c oxidase

Solution

The four ETC complexes are:

  • Complex I — NADH dehydrogenase
  • Complex II — Succinate dehydrogenase
  • Complex III — Cytochrome bc
  • Complex IV — Cytochrome c oxidase

Hence Complex II is succinate dehydrogenase.

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