Chapter 7 – Microbiology Questions And Answers 2024/2025 A+

Chapter 7 – Microbiology Questions And Answers 2024/2025 A+ which microbial structures do antimicrobial agents target? - ANS-cell wall - prevent cell from bursting PM - permeability DNA - proteins and enzymes what factors determine whether an antimicrobial is effective? - ANS-time 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? - ANS-they go under UHT (ultra high temperature) or steam sterilization - ANS-removal or destruction of all forms of microbial life heating is the most common form (dry/moist) commercial sterilization - ANS-limited heat treatment used in canned food processing kills endospores of clostridium botulinum (obligate anaerobe) disinfection - ANS-- destruction of vegatative (non-endospore forming) microorganisms that may be harmful - may involve chemicals, UV light, steam, boiling water includes antiseptic antiseptic - ANS