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18 Cards in this Set
- Front
- Back
Germ Theory
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Microorganisms can invade other organisms to cause disease and contamination
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Francesco Redi
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Challenged spontaneous generation theory by placing meat in sealed and unsealed jars
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Robert Hooke
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Invented the first compound microscope
Observed cork and described them as cells Led to creation of cell theory |
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Van Leeuwenhoek
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Refined the microscope and observed the first microorganisms on teeth scrapings
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Cell theory
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Theory formulated by Schleiden and Schwann that cells are the
fundamental units of all living things |
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Spontaneous Generation
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Theory that microorganisms can appear spontaneously on nonliving things
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Louis Pasteur
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Used swan-necked flasks with heated broth to dispose spontaneous generation theory
Proved that organisms were present in air and could contaminate items Developed pasteurization to kills bacteria and prevents spoiling Developed first rabies/anthrax vaccine |
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Robert Koche
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First to cultivate pure cultures
Developed Koch's Postulates used to prove a certain organisms causes a particular disease using Anthrax |
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Koch's Postulates
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Microbe must be present in every case of disease and be absent from health organisms
Suspected organism must be isolated and pure When inoculated into a healthy host, it must cause same disease Must be able to isolate microbe again from infected host |
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Joseph Lister
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"Father of Aseptic Surgery" Developed aseptic techniques using phenol/ carbolic acid
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Paul Ehrlich
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Chemotherapy pioneer (selective toxicity) who tests thousands of compounds to characterize their antimicrobial properties
Identified first treatment for syphilis |
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Alexander Fleming
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Discovered that certain bacteria and fungi can prevent others from growing
Created the first antibiotic (penicillin) |
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John Needham
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Supported spontaneous generation by boiling broth in flasks then sealed could still develop organisms (because flask wasn't sterilized)
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Lazzaro Spallanzani
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Proposed that air carried germs to a culture medium
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John Tyndall
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Proved that dust carried microbes
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Joseph Lister
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Rubbed antimicrobial compounds on wounds to prevent infection
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Edward Jenner
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Developed a smallpox vaccine using scrapings of cow pox (weakened virus) that were inhaled (a practice Chinese had been using for ages)
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Semmelweis
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Proposed hand washing to prevent infections during labor/sugery
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