The basis and classification of carbohydrates, lipids, amino acids, nitrogen bases and nucleotides will be illustrated. Properties, structure and function of proteins and enzymes, catalysis and enzymatic kinetics. Generalities and regulation of metabolism. Aerobic glycolysis and fermentation, pentose phosphate pathway. Pyruvate Dehydrogenase, Krebs cycle, respiratory chain and oxidative phosphorylation. Beta oxidation of fatty acids, ketogenesis, amino acid metabolism and urea cycle, gluconeogenesis, glycogen metabolism, fatty acid synthesis. Structure and function of DNA and RNA. Replication, transcription, genetic code, protein synthesis.