microbes that do not usually cause diseases under ordinary conditions but have the potential to cause disease should the opportunity present itself.
Opportunistic pathogens
microbes that live on and in the human body.
Indigenous microbiota
Approximately 10 times as many microbes live in the human body.
•Reported to the world that life’s smallest structural units were “little boxes” or “cells”.
Robert Hooke
“Father of Microbiology”, “Father of Bacteriology”, “Father of Protozoology.
Anton Van Leeuwenhoek
French chemist made numerous contributions to microbiology.
He introduced the term “aerobes” (organisms that require oxygen) and “anaerobes” (organisms that do not require oxygen).
Louis Pasteur
Led to the establishment of Microbiology as a science.
Pasteur and Robert Koch
this idea described the possibility that microorganisms might have similar relationships with plants and animals , specifically that microorganisms might cause disease.
The Germ Theory
2 major categories of microbes: also called infectious particles
Acellular microbes
2 major categories of microbes: also called microorganisms
Cellular microbes
this refers to the sum of all chemical reactions within a living organism.
Metabolism
Refers to the chemical reactions that result in the breakdown of more complex organic molecules into simpler substances. (release energy)
Catabolism
refers to chemical reactions in which simpler substances are combined to form complex molecules. (require energy)
Anabolism
refers to the proteins, produced by living cells, that catalyze chemical reactions by lowering the activation energy.