This module acquaints students with microorganisms and their activities. The aim of this course is to give information about microbial structure, classification of microorganisms, examples of beneficial and harmful microorganisms. Topics include microbial cell structure, function, classification of microorganisms, metabolism, and the role of microorganisms in disease, immunity, Infection and pathogenicity, Isolation of a broad range of non-pathogenic bacteria from natural sources, using selective and enrichment techniques, with microscopic, biochemical, and molecular identification, and other selected applied areas of microbiology such as environmental biotechnology, roles of microorganisms in wastewater treatment, nutrient removal, energy generation by microbial cells, food microbiology, microbial ecology will be covered