A little bit of Biochemistry in english...

This is an entry a little bit different of the others, presented up to now. The principal difference, as you can see, is the language. This comes thanks to the fun and a little frightening idea of Paul Rodríguez our teacher, of having a class o biochemistry completely in english.
In this entry we are going to explain you the "Chemiosmotic theory of Mitchell", related to the Respiratory Chain. This theory, enunciated en 1961 by Peter Mitchell, is actually the most accepted of different theories about the oxidative phosphorylation mechanism. It holds that simultaneously with the process of electron transport, in the respiratory chain, the protons are translocated from mitonchondrial matrix into the intermembrane space. This last endergonic process occurs thanks to its coupling with the transport of electrons, a highly exergonic process. This  unidirectional proton pump produces its accumulation in the intermembrane space, generating an electrochemical gradient. Being so, the  concentration of H+ higher in the intermembrane space that in the matrix (obviously a lower pH). And also having a difference in electrical potential between both sides. As a result, a potential proton-motive, which tends to return the protons into the matrix, is obtained. As the inner membrane is impermeable to these protons, they can just go back through the channels of ATP synthase. This return flow (an exergonic process), for the gradient, provides the energy for synthesizing ATP from ADP and Pi.

Well this is a little of biochemistry in english, we hope you like it. See you.
Biologically chemical