User:RayneeLBIOL/Plasma membrane H+-ATPase

In plants, an example of secondary active transport processes driven by the proton gradient energy are nutrient uptake and transport.

H+-ATPase energizes nutrient uptake by establishing an electrochemical proton gradient that will drive secondary active transport. H+-ATPase uses the energy of ATP to pump H+ protons out of the cytoplasm of the cell. This creates and maintains an electrochemical gradient of H+ from outside the cell to inside the cell. Secondary active transport carriers use this H+ electrochemical gradient across the plasma membrane to co-transport solutes into the cell, therefore allowing nutrient uptake to occur.