Monomer bagi protein ialah asid amino.
asid amino akan bergabung bersama membentuk rantai yg panjang iaitu polipeptida
Proteins are polymers of amino acids covalently linked through peptide bonds into a chain. Within and outside of cells, proteins serve a myriad of functions, including structural roles (cytoskeleton), as catalysts (enzymes), transporter to ferry ions and molecules across membranes, and hormones to name just a few