Study biochemistry with ACS, learn about animal biochemical processes including glycolysis, lipid, amino acid and nucleotide metabolism, oxidative phosphorylation, enzyme activity and electron transport. In Biochemistry III (Animal Biochemical Processes) you have the opportunity to learn more about the fascinating biochemical processes found in all life forms. Metabolic processes comprise all the reactions in an organism that sustain its life. There are many biochemical pathways and reactions that either consume or provide energy, different types of molecules that are the basis of bigger structures, and reactions that take up energy and molecules to build up new structures.