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Sterillization
Micro lab exam
10
Biology
Undergraduate 3
10/13/2011

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Cards

Term
what are the three types of sterlization?
Definition
  1. Heat sterillization
  2. Radiation sterillization
  3. Filter sterillization
Term
Heat sterilization
Definition
for liquids and solids, supplies and labware
Term
how does heat sterilization work?
Definition
denature of proteins at high temperature, degradation of nucleic acids and disruption of membranes
Term
what is an example of heat sterilization?
Definition
autoclave
Term
radiation sterilization
Definition
decontainmination of surfaces of or plasticware such as petri dishes
Term
how does radiation sterilization work?
Definition
each type of electromagnitic radiation acts through a specific mechanism that leads to the death of the irradiated microorganisms
Term
what is an example of radiation sterilization?
Definition
UV rays, UV light
Term
Filter sterilization
Definition
for heat sensitive liquids
Term
how does filter sterilization work?
Definition
the pore of the filter are too small for the passage of the microorganisms but large enough to allow the passage of liquid
Term
whats an example of filter sterilization?
Definition
standard bacteriological filter
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