EXAM WITH COMPLETE QUESTIONS AND CORRECT
ANSWERS// VERIFIED//GRADED A+//
Know the difference between direct and indirect
measures of microbial growth.
direct= count actual CFUs, plate counts, filtration,
microscopic survey
indirect= estimate CFUs, turbidity, metabolic activity, dry
weight of samples
Sepsis definition
microbial contamination, inflammatory condition as a
result of microbes
asepsis/aseptic technique definition
absence of contamination, aseptic technique, prevents
contamination of solutions & cultures, prevents
microbial contamination of patients
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,sterilization definition
removal of all microbial life (including endospores)
disinfection definition
removal of pathogens from surfaces
antisepsis definition
removal of pathogens from living tissues
degerming definition
removal of microbes from a limited area
sanitization definition
lower microbial count on inanimate objects
biocide/germicide
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, kills microbes, commercial sterilization, must use
enough heat to kill clostridium botulinum endospores
bacteriostasis definition
inhibiting, not killing microbes
Know room temperature, the temperature that water
boils, and the temperature of ice formation, in both
degrees Celsius and degrees Fahrenheit.
room temp- 20 C 72 F
water boils- 100 C 212 F
ice formation- 0 C 32 F
Culture definition
microbes growing in/on culture medium
Culture medium (singular)/ media (plural) definition
nutrients prepared for microbial growth
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