Could be nonsense but might provide duckduckgo fodder. :)
Matthias Bock <matpbock@googlemail.com> wrote:
Up to my knowledge, there are two different things: delta pH and delta Psi, corresponding to:delta pH: difference between proton concentrations, but no charge, all protons have counterions.delta Psi: electrical potential at the inner membrane, involving charge, like in a capacitor.(Both seems to play a role in mitochondria: Having no charge,but pH differences, can still drive the ATP synthetase)In general, the protons do not need any other compound in their role as potential energy keeping agents,not OH- or NAD+ or any redox carrier.It is just protons being pumped outside the matrix, and just protons,which's inflow to the matrix drives ATP synthetase.There is an electrical potential driven ADP/ATP exchanger though, sothe ratio between ADP which is 3- and ATP which is 4-, may also play a role...In conclusion, in both cases proton gradients represent order (instead of entropy),meaning that the very mixing of matrix and intermembrane space leads to "liberation" of free enthalpy,rising the temperature.Hope I used the right words, hope it helps :-)Best, Matthias
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