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Cards In This Set
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The Big 6
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1. cause2. reservoir3. mode of transmission4. symptoms5. treatment6. control/prevention
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Infectious diseases in top 10 causes of death in US
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Influenza and pneumonia
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Aerobic
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With oxygen, requires oxygen. All molds, many bacteria, all protozoa. Ex: bordotella pertussis (whooping couch) and bacillus anthracis.
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Anaerobic
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Doesn't use O2. Some can tolerate, but not others. Some bacteria, only rare ones are obligate. ex: Clostridium dificille
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Obligate anaerobes
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Anaerobes that can't tolerate O2.
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Facultative anaerobes
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Grows better with O2, but can still grow without it. Many bacteria. all yeast. Ex: E. coli
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Prokaryotes:
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No internal compartments bound by membranes. All bacteria.
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Eukaryotes:
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Many membrane bound internal organelles.
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Unicellular:
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Bacteria, yeast
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Multicellular:
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Mold, mushrooms, helminths,
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Not cellular:
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Virus and prion
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Size ratio, smallest to largest
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Prion, virus, bacteria, yeast, mold, protozoa, and helminths
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Bacteria (size)
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.1 to 3 microns (100-300 nm)basic types: bacillus (rod), cocci (round)gram+rod, gram-rod, gram+cocci, gram-cocci. rare: spirochete- syphilis, Gram-cocci for gonorrhea. Gram positive rod: blue, gram negative rod is pink. all have a cell wallseen by using a 1000 power microscopeunicellularvery few cause disease: less than .1%
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Viruses (size)
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30-300 nmspecify if enveloped or not and rna or dnano cell wallcannot reproduce without host seen through an electron micrographno cell, thus not unicellular or multicellularno good viruses!
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Fungi:
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10x larger than bacteriacan survive as a single cell, but mostly multicellularyes cell wallmold and yeastshape: yeast: spheres (10x bigger than bacterial cocci). Molds: fillamentous and differentiate to hyphae (stems) and spores (seeds)has a true nucleuscandida albicans: a yeast fungusbacteria and fungi and ubiquitous!cause disease: ringworm, farmers lung, yeast infections
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