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The Quick and Dirty of Microbiology
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Bacteria Structure Unicellular Prokaryotic Some have flagella
No nucleus Two domains: Eubacteria & Archea
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Different Shapes Bacillus: Rod-Shaped Coccus: Round-Shaped
Spirrilium: Spiral-Shaped Arrangements Staphlo- Grape-like cluster Strep- Chain Diplo- Pair
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Roles of Bacteria Decomposers Nitrogen Fixation Dairy Production
Bio-technology Some of them are pathogens. Gram Staining Purple- Gram + usually can be treated with antibiotics. Red/Pink Gram – Usually cannot be treated.
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Viruses Non-living Made of DNA/RNA surrounded by protein coat (capsid)
Cannot be treated with antibiotics. Bacteriophage is a virus that infects bacteria.
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Viral Infection Lytic Infection
Virus invades the host cell and immediately starts making virus parts. Rapid reproduction
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Viral Replication Lysogenic Infection Delayed infection
DNA incorporated into host genome.
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Kingdom Protista A eukaryotic organism that is not a plant, animal or fungus. Mostly unicellular Some are heterotrophic, some are autotrophic. Classified by method of movement.
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Endosymbiotic Theory The development of a eukaryotic cell comes from a symbiotic relationship between simpler cells.
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Disease Causing Protists
Malaria is caused by a non-motile protists called plasmodium. Carried by a mosquito.
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