Question

Electron transport system in mitochondria is located on _____ (a) Outer membrane (b) Inter cristae space (c) Inner membrane (d) Inner membrane space

Answer 1

c) Inner mitochondrial membrane

Answer 2

"Electron transport system in mitochondria is located on (c) inner membrane.

The inner membrane of mitochondria contains five enzyme complexes which are responsible for transport of electron during oxidative phosphorylation process.

Complex I is called as NADH-Coenzyme Q reductase and accepts NADH as the electron carrier.

If FADH is the electron carrier, then complex II, which is called as succinate dehydrogenase complex, comes into play.

Complex III is called Coenzyme Q- cytochrome C oxidoreductase and accepted electrons from the carrier coenzyme Q (which is only involved with complex I and not II).

Complex IV, also known as cytochrome oxidase complex, is responsible for reducing oxygen to water from the electrons accepted from complex III.

Complex V, known as the F0F1 ATP synthase, is responsible for production of ATP.

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