polypeptide chains
amino acids
keratin proteins
hydrogen bonds
peptide bonds
disulfide bonds
Long, coiled polypeptide chains.
Strong chemical side bonds formed when the sulfur atoms in two adjacent protein chains are joined together.
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.
Long chains of amino acids joined together by peptide bonds.
Compounds made up of carbon, oxygen, hydrogen, nitrogen, and sulfur.
