1.1: Introduction to Microbiology Last updated Jan 3, 2021 Save as PDF 1: Introduction to Microbiology 1.1A: Defining Microbes Page ID8623 BoundlessBoundless ( \newcommand{\kernel}{\mathrm{null}\,}\) Topic hierarchy1.1A: Defining MicrobesMicrobes are organisms that are microscopic, or extremely small.1.1B: History of Microbiology - Hooke, van Leeuwenhoek, and CohnThe development of the microscope, along with the observations of various scientists, led to the discovery of microorganisms.1.1C: Pasteur and Spontaneous GenerationPasteur’s experiments revealed that spontaneous generation does not occur.1.1D: Koch and Pure CultureRobert Koch identified anthrax as a disease agent and formulated postulates that are still used to research diseases today.