Construction, classification and nomenclature of organic compounds. Types of chemical bonds and non-covalent bonds. Isomerism: syntactical isomerism, stereoisomerism (optical isomerism, diastereoisomerism). Aromatic compounds. Introduction to Biochemistry (acid- base concepts, buffers). Protein structure and function (amino acids, peptides, proteins). Enzymes (structure, mechanisms of action, control of enzymatic activities, inhibitors, coenzymes). Structure and function of Nucleic Acids (DNA, RNA). Structure and function of Carbohydrates (monosaccharides, disaccharides, oligosaccharides, polysaccharides). Structure and function of lipids (fatty acids, triacyloglycerols, phospholipids, glycolipids, lipoproteins, steroids). Introduction to biological membranes (structure, receptors). Metabolism of biomolecules (basic concepts and design, ATP). Metabolism of carbohydrates (glycolysis, citric acid cycle, oxidative phosphorylation, pentose phosphate pathway, gluconeogenesis). Fatty acid metabolism (β- oxidation, ketone bodies, biosynthesis of cholesterol). Protein metabolism (decarboxylation, transamination, urea cycle). Hormones (structure, action mechanisms, function).