Microbiology Chapter 7 Exam Questions with 100% Correct Answers | Verified | Updated

Microbiology Chapter 7 Exam Questions with 100% Correct Answers | Verified | Updated which microbial structures do antimicrobial agents target? - answercell wall - prevent cell from bursting PM - permeability DNA - proteins and enzymes which microbial structures do antimicrobial agents target? - answercell wall - prevent cell from bursting PM - permeability DNA - proteins and enzymes what factors determine whether an antimicrobial is effective? - answertime of exposure cell wall type concentration of microbes concentration of antimicrobial temperature what factors determine whether an antimicrobial is effective? - answertime of exposure cell wall type concentration of microbes concentration of antimicrobial temperature why can certain milk proudcts and fruit juices be stored as RT and not spoil? - answerthey go under UHT (ultra high temperature) or steam why can certain milk proudcts and fruit juices be stored as RT and not spoil? - answerthey go under UHT (ultra high temperature) or steam sterilization - answerremoval or destruction of all forms of microbial life heating is the most common form (dry/moist) sterilization - answerremoval or destruction of all forms of microbial life heating is the most common form (dry/moist) commercial sterilization - answerlimited heat treatment used in canned food processing kills endospores of clostridium botulinum (obligate anaerobe) commercial sterilization - answerlimited heat treatment used in canned food processing kills endospores of clostridium botulinum (obligate anaerobe) disinfection - answer- destruction of vegatative (non-endospore forming) microorganisms that may be harmful - may involve chemicals, UV light, steam, boiling water includes antiseptic disinfection - answer- destruction of vegatative (non-endospore forming) microorganisms that may be harmful - may involve chemicals, UV light, steam, boiling water includes antiseptic antiseptic - answera disinfectant that is used on living tissue ex. hydrogen peroxide, hand sanitizer, iodine, mouth wash, baby wipes. antiseptic - answera disinfectant that is used on living tissue ex. hydrogen peroxide, hand sanitizer, iodine, mouth wash, baby wipes. degerming - answerremoval of microbes from a limited region generally involves mechanical removal degerming - answerremoval of microbes from a limited region generally involves mechanical removal sanitization - answerlower microbial counts on eating utensils high temperature washing or chemical disinfectant sanitization - answerlower microbial c