Microbiology is the study of microorganisms- how they work and their role in our world. Microorganisms encompass huge diversity and include bacteria, viruses, fungi and single-celled animals and algae. Although not visible to the naked eye, microorganisms have a profound effect on our world. They are fundamental to the basic nutrient and biogeochemical cycles that underpin life on Earth; they cause infectious diseases, including diseases of crops and farmed animals; and they are used to make foods and a vast array of chemicals used in agriculture, food processing, mining and other industries. Importantly, the study of microorganisms can tell us much about the origin and history of life, and has taught us about basic life processes that are now being exploited in the various fields of molecular biology. This unit provides students with a basic knowledge of microbiology with particular emphasis on the structure, function and ecophysiology of bacteria and viruses. The unit considers the place of microorganisms in the evolution of life on earth, their structure, chemistry, biology and ecology, and their role in disease, ecosystems, food production and biotechnology. The practical component equips students with skills in the cultivation and identification of bacteria and mycelial fungi as well as an introduction to techniques in molecular microbiology. Combined, the theory content and training in laboratory skills prepares students for advanced level Microbiology subjects.