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13 Cards in this Set
- Front
- Back
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Sterilization |
refers to the removal ordestruction of all microbes |
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Microbistatic |
Prohibits the growth of microorganisms. In the presence of microbiostatics, the microorganisms eventually die due to lack of reproduction |
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Antisepsis |
When chemical is used on skin or other living tissue |
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Microbicdial |
Agent kills microorganisms |
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Disinfection |
Use of physical or chemical agents to kill microorganisms on inanimate objects |
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degerming |
the removal of microbes from a surface byscrubbing |
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Microbial death |
Permanent loss of reproductive capability in microorganisms |
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Sanitization |
process of disinfecting places andutensils used by the public to reduce the number of pathogenicmicrobes to meet accepted public health standards |
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pasteurization |
use of heat to kill pathogens andreduce the number of spoilage microorganisms in food andbeverages |
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antibiotic |
antimicrobial chemicals producednaturally by microorganisms |
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Mechanisms of resistance |
1: cells may produce an enzyme that destroys ordeactivates the drug. 2: slow or prevent the entry of thedrug into the cell 3: alter the target of the drug so that thedrug either cannot attach to it or binds it less effectively 4: Alter their metabolic chemistry, or theymay abandon the sensitive metabolic step altogether 5: Pump the antimicrobial out of the cellbefore the drug can act 6: Bacteria within biofilms resist antimicrobials more effectivelythan free-living cells 7: protecting the target of an antimicrobial drug |
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Selective toxicity vs. toxicity |
selective toxicity antimicrobial agents are more toxic topathogens than to the patient |
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probiotics |
Beneficial Microbes |
