(Prerequisites, CH370 or CH574) Provides a survey of the common biological molecules, their metabolism, and their roles in life-sustaining processes. Topics include special features of the aqueous environment, structures of basic biological macromolecules, protein and nucleic acid biosynthesis, protein structure and function, enzyme mechanisms and kinetics, energetics, and metabolism of carbohydrates, lipids, and amino acids. Three lecture periods per week. (Concurrent enrollment in CH661 is strongly recommended.)