Answer: ATPase
Explanation: The sodium potassium pump is also known as ATPase.
This pump works by pumping potassium ions into the cell while pushing the sodium ions outside of the cell which is used to generate action potential across the cell membrane.
This pump performs active transport and the energy used for this process is derived from adenosine triphosphate. ATP is hydrolyzed and energy is energy is released which is used by this pump.
Hence, sodium potassium pump is known as sodium potassium ATPase.