Matching Pairs Hair Building BlocksOnline version Match the hair bond with the correct description. by Rosalind Carter 1 polypeptide chains 2 keratin proteins 3 hydrogen bonds 4 amino acids 5 peptide bonds 6 disulfide bonds Long chains of amino acids joined together by peptide bonds. Weak physical side bonds that are the result of an attraction between opposite electrical charges. Strong chemical side bonds formed when the sulfur atoms in two adjacent protein chains are joined together. Compounds made up of carbon, oxygen, hydrogen, nitrogen, and sulfur. Chemical bonds that join amino acids together, end-to-end, in long chains. Long, coiled polypeptide chains.