The document discusses microbiology and microorganisms. It defines microbiology as the study of organisms too small to see without magnification, including bacteria, viruses, fungi, protozoa, and helminthes. It notes that bacteria are very tiny, around 1-2 micrometers in size. The document outlines some key figures in the field, including Antonie van Leeuwenhoek who first observed microbes under magnification, and Louis Pasteur who demonstrated germ theory and developed pasteurization. It also discusses how microorganisms are identified, measured, and classified, and notes that while some are pathogens and cause disease, many are beneficial and help with processes like nutrient production and decomposition.

1. Microbe Challenge July 25, 2011 Sloan C Workshops Vimlarani Chopra, PhD

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