IGNOU BZYCT 135 2026 - Briefly explain the components of the Electron Transport Chain with th

Question

Briefly explain the components of the Electron Transport Chain with the help of a suitable diagram.

31 Jan 2026

Answer :

Word Count : 301

The Electron Transport Chain (ETC) is a series of protein complexes and small molecules embedded in the inner mitochondrial membrane that transfer electrons from electron donors like NADH and FADH₂ to oxygen, the final electron acceptor, generating a proton gradient that drives ATP synthesis. The main components of the ETC include Complex I (NADH dehydrogenase), Complex II (succinate dehydrogenase), Coenzyme Q (ubiquinone), Complex III (cytochrome bc₁

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