This course covers Microbial Growth and Effect of Environment on Microbial Growth, Nutrient uptake and Transport, Aerobic and Anaerobic respiration, Phototrophic Metabolism and Nitrogen metabolism. This course is designed with recent developments in microbial physiology, and it will be beneficial to all participants who want to gain and update their knowledge of microbe physiology. The question Answers session for each topic will help participants to solve the questions of CSIR-NET, ICMR-JRF, GATE, CUCET, GAT-B etc.