6.1 Nutrient requirements 6.2 Nutritional types of microorganisms 6.3 Uptake of nutrients by the cell 6.3 Culture Media 6.4 An Overview of Metabolism 6.5 Fermentation: The Embden-Meyerhof Pathway 6.6 Respiration and Electron Transport 6.7 The Balance Sheet of Aerobic Respiration and Energy Storage 6.8 An Overview of Alternate Modes of Energy Generation 6.9 Biosynthesis of Monomers 6.10 Nitrogen fixation