Levels of structure in proteins. The primary structure consists of a sequence of amino acids linked together by peptide bonds. • and includes any disulfide bonds . Proteins are molecules composed of chains of amino acids; Proteins have a Primary structure is the sequence of amino acids linked together in a protein. Be able to write out the structure of the reactants and the product. The primary structure of protein: a sequence of amino acids linked together by peptide bonds . All information for 3-D structure is contained in the linear sequence of amino acids. . Insulin is the smallest protein, with 51 amino acids in two chains linked by. Proteins are made of 20 amino acids linked by peptide bonds; Polypeptide backbone is the repeating sequence of the N-C-C-N-C-C in the peptide bond; The. The primary structure of protein refers to the sequence of amino acids present in the polypeptide chain. Amino acids are covalently linked by. Protein structure: primary, secondary, tertiary and quaternary structure. Proteins are biopolymers, made of the 20 L- α-amino acids linked by peptide bonds. Although their structures, like their functions, vary greatly, all proteins are made types of reactions and may break down, link up, or rearrange their substrates. Protein Structure Right click on ttcih.org and choose "Save Link As". you can read about this here and a good review of the structure and function of. In turn, a protein's structure determines the function of that protein Protein structure determines function Peptide bonds connect amino acids into linear.