Describe the process of the hydrogen ion pump.

Proton pumps are a special kind of transporter that push hydrogen ions from areas of low concentration to areas with high concentration. Ions moving down a gradient release energy, but when they move up a gradient, it takes energy. Diffusion can then use this gradient to capture energy again, as the ions move downhill

The hydrogen ion pump consists of a membrane protein that helps build concentrations of protons between membranes. This is important in moving high concentrations of hydrogen ions to low concentrations.