Tuesday, January 25, 2011

Electron Transport Chain

The electron transport system is the final stage of aerobic respiration.

The electrons are transferred from NADH and FADH2 via several electron acceptors to the final electon acceptor, which is molecular oxygen. 

During this process, the energy is produced in the form of ATP. This process is called oxidative phosphorylation. 

The inhibitors such as cyanide and carbon monoxide will inhibit the function of the electron transport chain.
The electron transport system is a chain of electron acceptors embedded in the inner membrane of the mitochondrion.

The electron transport system accepts electrons from the energy carriers such as NADH and FADH2 produced from glycolysis and Krebs cycle.

The electron transport chain consists of mostly cytochromes which are proteins with a prosthetic group.

One water molecule is formed from oxygen at the end of the elctron transport system.

One NADP produces three ATP and one FADH2 produces teo ATP through the electron transport system.

The net energy gain is 34 ATP molecules in Electron Transport Chain.

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