what is proteins composed of
Proteins (also known as polypeptides) are organic compounds made of amino acids arranged in a linear chain and folded into a globular form.The amino acids in a polymer are jo â¦ ined together by the peptide bonds between the carboxyl and amino groups of adjacent amino acid residues.roteins (also known as polypeptides) are organic compounds made of amino acids arranged in a linear chain and folded into a globular form.