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Micro20 exam2
Study Guide for Exam 2 Microbiology 20 ELAC
Term | Definition |
---|---|
Organic | |
Aseptic | |
Sterile | |
Sterilization | Kills all life forms |
Disinfection | |
Disinfectant | |
Antiseptic | |
Sanitization | |
-Cidal | |
-static | |
pasteurization | |
lyophilization | |
tincture | |
therapeutic index | |
MIC | |
spectrum of a drug | |
synergism | |
antagonism | |
drug resistance | |
drug susceptibility | |
synthetic drugs | |
botanicals | |
antibiotics | |
penicillinase | |
oligodynamic action | |
Contrast a disinfectant vs. an antiseptic | |
Explain how drug resistance develops and how can be delayed (can it be avoided?) | |
selective toxicity | kill or inhibit the actions or synthesis of molecules in microorganisms but not vertebrate cells |
characteristics of an ideal disinfectant | -Kills all types of microorganisms (bacteria, viruses, etc.) -Rapid action with penetrating power. -Dissolve in water or form an emulsion -Relatively inexpensive (although depends on application) -Relatively non-toxic to humans |
methods of evaluating disinfectants | -Nature of material to be disinfected (cloth, steel, liquid, etc) -Type of Microorganism present, it known -Conditions --Ex:Temperature, Time, pH, Concentration (amount) of disinfectant, Presence or absence of extraneous material |
Phenols and derivatives | -Phenol: is benzene ring with -OH attached -Lysol: trade name (cresol and soap) -Cresol: preservative |
biquanides, chlorhexidine |