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32 Cards in this Set
- Front
- Back
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The destruction of all life forms, including spores. Killing all the bugs that are present.
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Sterilization
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Trying to get rid of harmful microorganisms, won’t be able to get rid of spores. Term used for disinfecting an inanimate object.
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Disinfection
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Disinfection aimed at living tissue.
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Antisepsis (antiseptic)
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Mechanical removal of bugs.
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De-germing
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Aimed at lowering the count of bugs in the area.
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Sanitization
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Specific to killing fungi
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Fungicide
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Absence of contamination
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Asepsis
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The lowest temperature at which all microbes will be dead in 10 minutes.
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Thermo Death Point
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The minimum time at which all microbes will die at a certain temperature.
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Thermo Death Time
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Generally kills most everything in about 10 minutes.
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Moist Heat (Boiling)
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Steam under pressure, used to sterilize most reusable medical equipment.
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Autoclave
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Can be done in an over. At a 170 degrees takes about 2 hrs to kill something.
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Hot air sterilization
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An environment were we slow down the growth of bacteria.
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Bacteriostatic effect
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Kills the bugs, doesn’t kill spores unless combined with temperature. Without temperature helps maintain the nutrients and taste.
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High Pressure Sterilization
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Absence of water, dehydration, freeze drying, wont kill the bacterial but will stop the growth. A form of bacteriostatic effect.
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Desiccation
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Creates a high concentration of solute, so it sucks all the water from bacteria and kills the bug, causes it to lyse.
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Osmotic Pressure
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Cannot depend on this to kill bacteria in food. If you get enough heat then it will kill the bacteria.
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Microwaves
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What are the following:
- Alcohol - Chlorine - Silver - Soap |
Common Disinfectants
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Kills bacteria and fungi but not effective on viruses or endospores.
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Alcohol
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Is good for aiding in the mechanical removal of bacterial, makes skin slippery. Generally not a good disinfectant.
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Soap
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Plants and bugs that get their energy from light.
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Phototrophs
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Can use Carbon Dioxide as a source for energy. Example Lichens.
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Autotrophs
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Requires an organic carbon source, feeds on others.
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Heterotrophs
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Can live on dead or live organic matter. A type of Heterotroph.
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Saprophytes
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Can live on living host only.
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Parasites
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Cold loving
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Psychrophiles (Chryophiles)
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Organisms that grow best in moderate temperatures.
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Mesophiles
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Organisms that grow well in hot temperatures.
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Thermophiles
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Organisms that thrive in acidic conditions usually pH 2 or lower.
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Acidophiles
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An organism that must have oxygen to survive.
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Obligate Aerobe
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An organism that can use oxygen when present, but doesn't require it.
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Facilitative Anaerobes
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An organism that is harmed or killed in the presence of oxygen.
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Obligate Anaerobes
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