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An electron transport chain (ETC [1]) is a series of protein complexes and other molecules which transfer electrons from electron donors to electron acceptors via redox reactions (both reduction and oxidation occurring simultaneously) and couples this electron transfer with the transfer of protons (H + ions) across a membrane.
English: Diagram of the electron transport chain in the mitochondrial intermembrane space. Compared to the original this version has: Corrected stoichiometry, Cytochrome C is no longer inside the membrane, Complex II is now transmembrane, added electrons.
Electron transport chain zh tw.svg ETC Electron transport chain-es.jpg Corrected stoichiometry, Cytochrome C is no longer inside the membrane, Complex II is now transmembrane, added electrons
The following other wikis use this file: Usage on ar.wikipedia.org فسفرة تأكسدية; حشوة الميتوكندريون; Usage on bg.wikipedia.org
This chain of electron acceptors is known as an electron transport chain. When this chain reaches PSI, an electron is again excited, creating a high redox-potential. The electron transport chain of photosynthesis is often put in a diagram called the Z-scheme, because the redox diagram from P680 to P700 resembles the letter Z. [3]
NADH and FADH 2 undergo oxidation in the electron transport chain by transferring an electrons to regenerate NAD + and FAD. Protons are pulled into the intermembrane space by the energy of the electrons going through the electron transport chain. Four electrons are finally accepted by oxygen in the matrix to complete the electron transport chain.
Water-splitting process: Electron transport and regulation. The first level (A) shows the original Kok model of the S-states cycling, the second level (B) shows the link between the electron transport (S-states advancement) and the relaxation process of the intermediate S-states ([YzSn], n=0,1,2,3) formation