Which proton(s), if any, are transferred from the matrix to intermembrane?
Electron transfer is the movement of protons from succinate to Complex II in the respiratory chain. This process involves moving protons from the matrix to intermembrane spaces. The process of proton translocation, also called oxidative phosphorylation, is integral to this. Complex II (succinate cytochrome-c reductase), and Complex III (ubiquinone dehydrogenase), both of the respiratory chains, are responsible for proton translocation. One proton in the succinate case is transferred from the intermembrane to the matrix when electrons are passed to Complex II (Nijtmans and al., 2017). Then comes the transfer of four prototons from the intermembrane to the matrix. This is done by Complex III (Glimm and al., 2002). Two protons then move from the matrix into the intermembrane, via Complex IV (cytochrome c oxidase). (Boron & Boulpaep 2016). Five protons move from the matrix into the intermembrane when one succinate molecule gives off electrons to Complex I of the respiratory chain. Cont….
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