Source: wikibot/proton-pump
= Proton pump
{wiki=Proton_pump}
A proton pump is a type of protein found in the membranes of cells that plays a crucial role in transporting protons (H⁺ ions) across that membrane. Proton pumps are essential for various cellular processes, including: 1. **Maintaining pH**: By controlling the concentration of hydrogen ions, proton pumps help maintain the acidity or alkalinity of different cellular compartments and the extracellular environment.