PROTEIN METABOLISM By N., Pam M.S. - April 28, 2013 The manufacture and breakdown of proteins. Proteins are broken down into amino acids as part of the basic turnover of cell proteins and elimination of peptides. PROTEIN METABOLISM: "Simple put, protein metabolism is essential to the maintenance of life functions." Related Psychology Terms CATABOLISM PEPTIDE POLYPEPTIDE CYTOKINE AMINO ACID IMBALANCE BETA-AMYLOID (P-AMYLOID) FAT METABOLISM BCL-2 PROTEIN DEFICIENCY AMINO ACID Cite this page: N., Pam M.S., "PROTEIN METABOLISM," in PsychologyDictionary.org, April 28, 2013, https://psychologydictionary.org/protein-metabolism/ (accessed April 2, 2020).