explain how does sodium potassium pump works?

Primary active transport is coupled directly with a metabolic source of energy such as ATP hydrolysis or absorption of light by a carrier protein. transport of sodium and potassium by the sodium potassium pump is the most common example of primary active transport.

This sodium potassium pump has two subunits. The alpha subunit is responsible for the transportation of sodium and potassium ions while the beta subunit is important for assembly.