Question

In a mitochondrion carrying out electron transport, the proton concentration gradient deveops in

Answer 1

The proton concentration gradient is the product of the electron transpot chain, in this the higher concentration of proton i.e H⁺ is more in intermembrane space (outside the inner membrane of mitochobdria) than inside the membrane(matrix).

The proton gradient develops between intermembrane space and the matrix. i.e. for the formation of ATP the proton H⁺ ions moves from intermembrane space to matrix through a structure called F1-Fo particle 9ATP synthatase molecule to generate ATP from ADP+iP.