Answer:
amino acids
Explanation:
(if you are confused, I recommend watching the videos from Khan Academy and The Amoeba Sisters.)
The sodium-potassium ion pump found in some cell membranes is made of amino acids.
It is a protein that is found in many cells. It keeps the intercellular concentration of potassium ions [K+] greater than the surrounding medium while keeping the internal concentration of sodium ions lower than the surrounding.
Its main function is to maintain the membrane potential of the cell. It also maintains osmotic equilibrium.
It is a protein and is composed of amino acids.
To learn more about the sodium-potassium pump here,
https://brainly.com/question/8507057
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