National Institutes of Health
Ncbi: Amino Acids Are Linked by Peptide Bonds to Form Polypeptide Chains
Proteins are linear polymers formed by linking the a-carboxyl group of one amino acid to the a-amino group of another amino acid with a peptide bond. The formation of a dipeptide from two amino acids is accompanied by the loss of a water...
CK-12 Foundation
Ck 12: Biology: Enzymes
[Free Registration/Login may be required to access all resource tools.] Discusses the role of enzymes in biochemical reactions.