Introduction to the chemistry of living cells. Topics include structure and function of proteins, lipids, carbohydrates, and nucleic acids; enzyme structure, mechanism and regulation of enzyme activity, and membrane structure and transport; and mechanisms of cellular processes and cellular physiology, including ion channels and pumps, cell motility, and the immune response. The second term emphasizes analysis of basic metabolic pathways, including glycolysis, electron transport, and oxidative phosphorylation, as well as mechanisms of metabolic regulation and integration.