Part of the Nelson "Biology Advanced Studies", this book covers microbiology and biotechnology. It has been written to cover both the core and options of A-level, AS-level and SCE Higher courses in biology, and relevant vocational courses in Further and Higher Education. Social, economic and environmental aspects are emphasized and enhanced by real-life case studies throughout. Questions aimed at increasing understanding and stimulating discussion are spread throughout the book with suggestions for investigations included. The books in the "Biology Advanced Studies" series provide a blend of accurate information and educational relevance by utilizing two authors on each book. In most cases, one is a practising teacher and examiner, and the other is a specialist from the industry. This introduction to microbiology surveys microbial types and their physiology, metabolism and growth, as well as human health and medical microbiology. Individual types are dealt with in an organisms datafile related to the topics covered in the text. The biotechnology of microbe productivity and DNA technology is emphasized, as well as medical, environmental and ethical aspects.