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21 Cards in this Set
- Front
- Back
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Antoni van Leeuwenhoek |
First to make a microscope. Called organisms he saw "animalcules" |
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Leeuwenhoeks microorganisms are grouped into six categories |
Bacteria, Archaea, Fungi, Protozoa, Algae, and small multicellular animals |
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Bacteria and archaea characteristics |
-Lack nuclei -smaller than eukaryotes -found in extreme enviroments -reproduce asexually -cell walls made of peptidoglycan |
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Fungi characteristics |
-Eukaryotic -obtain food from other organisms -have cell walls 2 types: -yeasts and molds |
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yeasts characteristics |
Reproduce by budding unicellular |
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mold charcteristics |
multicellular reproduce by sexual and asexual spores |
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types of locomotion |
pseudopods cilia flagella |
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Aristole |
believed in spontaneous generation |
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Redi |
his experiments disproved spontaneous generation (his experiment was the meat in three jars) |
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Needham |
Helped support idea of microbes spontaneously generating (his experiment was with beef, gravy and plant material) |
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Spallanzani |
his experiment contradicted Needham's findings he found multiple errors with within needham's experiments |
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pasteur |
Swan necked flask experiment also developed germ theory of disease |
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the debate over spontaneous generation lead to the development of |
The scientific method |
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Robert Koch |
studied disease causation first to: simple stain, photomicrograph, steam sterilize, use petri dishes, |
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Koch's postulates |
suspected agent must be in every found case agent must be isolated and grown outside host when introduced to a healthy host they must contract the disease |
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Semmelweis |
required medical students to wash their hands |
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Lister |
Sprayed wounds with carbolic acid |
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Edward Jenner |
developed vaccine against small pox began field of immunology |
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Ehrilich |
Magic bullets: chemicals that would destroy pathogens but not harm humans |
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Avery, MacLeod and McCarty |
Determined that genes are contained in molecules of DNA |
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Woese |
cells belong in three domains: Bacteria Archaea Eukarya |
