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