Match the terms to these definitions.
Fermentation, glycolysis, Krebs cycle, chemiosmosis, acetyl Co A electron transport system, ATP cellular respiration, oxidative phosphorylation, photophosphorylation, combustion.
.......... Ability
of certain membranes to use a hydrogen ion gradient to drive ATP formation.

Chemiosmosis is the movement of ions across a semipermeable membrane, down their electrochemical gradient. An example of this would be the generation of adenosine triphosphate (ATP) by the movement of hydrogen ions (H⁺) across a membrane during cellular respiration or photosynthesis.

So, the correct option is 'chemiosmosis'.