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20 Cards in this Set
- Front
- Back
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Anton Van Leeuwenhoek
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First to use a simple microscope
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Louis Pasteur
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Did pasteurization, fermentation, disproved theory of spontaneous generation
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Robert Koch
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A specific organism causes a specific infectious disease.
EX: Koch's postulates |
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Koch's postulates
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Agent must be found in every case of disease
agent can be isolated & grown in pure culture Agent must cause same disease when inoculated in susceptible host Agent must be recoverable from same animal |
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Subdisciplines of Microbiology
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Bateriology
Mycology Parasitology Virology Immunology |
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Darkfield Microscopy
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illuminated objects against a dark background : used to detect syphilis
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phase contrast microscopy
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unstained living microbes
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fluorescence microscopy
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UV light source
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Robert Hooke
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first to use term "cells"
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Schleiden & Schwann
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Proposed that all animals and plants are composed of cells
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Eukaryotic ribosome subunits
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40s and 60s
Combined = 80s |
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Prokaryotic ribosome subunits
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30s and 50s
combined = 70s |
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Glycocalyx
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extracellular material on top of the plasma membrane
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Bacteria cell wall
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peptidoglycan.
NAMANAG form carbohydrate backbone peptide cross-bridges cross them |
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Peptidoglycan
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NAMANAG =
n-acetylmuramic acid n-acetylglucosame |
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Flagellar Arrangement types
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Monotrichous -->single flagella
Amphitrichous -->one flagella at each pole Lophotrichous --> two/more flagella at one pole Peritrichous -->all over cell |
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Another name for pili
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Fimbriae
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Two functions of pili
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attachment, sex
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Infectious diseases
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pathogen colonizes body and subsequently causes a disease
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microbial infection
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individual ingests a preformed toxin
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