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Microbiology Chapter 11 Controlling Microorganisms

Terms in this set (82)

Sterilization
destruction of all microbial life
Disinfection
destroys most microbial life, reducing contamination on inanimate surfaces
Antisepsis
destroys most microbial life, reducing contamination on a living surface
Decontamination
the mechanical removal of most microbes from an animate or inanimate surface
Sanitization
lowering microbial counts on eating utensils to safe levels
Degerming
the mechanical removal of most microbes on the skin, alcohol wipes
-cide
to kill
-static
to stand still, prevent multiplication
antiseptic
applied directly to exposed body surfaces to destroy or inhibit vegetative pathogens
sepsis
the growth of microorganisms in the blood and other tissues
Asepsis
any practice that prevents the entry of infectious agents into sterile tissues and thus prevents infection
Primary targets of microbial control
microorganisms that can cause infection or spoilage that are constantly present in the external environment
highest resistance of microbial forms
bacterial endospores, prions
-have to use incineration to get rid of them
-prions can infect brains
Moderate resistance of microbial forms
Protozoan cysts, fungal sexual spores, naked viruses, resistant vegetative bacteria
-nonenveloped=virus with protein coat
-enveloped=plasma membrane around protein coat
Least resistance of microbial forms
most bacterial vegetative cells, fungal spores, enveloped viruses, yeasts, protozoan trophozoites
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