The process of ATP synthesis through a combination of electrochemical and osmotic events is known as:

Fermentation

Glycolysis

Oxidative phosphorylation

Oxidation of pyruvate to acetyl CoA

ATP synthesis through a combination of electrochemical and osmotic events is known as oxidative phosphorylation.

It occurs in the mitochondria during the electron transport chain where a proton gradient is used to drive the synthesis of ATP.