This module introduces students to the diverse world of microorganisms. Microbiology is a fascinating field of study, delving into the world of organisms that are too small to be seen with the naked eye. Structural and functional relationships are discussed with particular reference to the roles that microorganisms play in environmental cycles, diseases, and how they can be exploited in industrial applications. Practical components of this module, which allows students to apply the concepts covered in the theory component, focus on basic microbiological techniques such as the preparation of growth media, inoculation and isolation of bacterial cultures, bacterial enumeration, and basic microbial staining for identification. In addition, the various phases of bacterial growth are studied and followed.