Answer the following questions 1.) Which is correct regarding the rate of microbial death? A. cells die at increasingly greater rates B. only older cells die in a culture C. cells in a culture die at a constant rate upon contact with the control agent, all cells die at one time D. E. cells become metabolically inactive but are never killed 2.) At what temperature do disinfectants work better? 3.) How would the amount of exposure of chemical antimicrobial agents differ? Explain your answer. 4.) When are endospores more resistant to heat? 5.) Explain the process of protein denaturing. Match the terms with the correct definition Matching: Disinfection 6.) A suffix meaning kill.” “to Sterilization Destroying or removing all forms of microbial 7.) life. Antisepsis 8.) The absence of pathogens on an object or area. Asepsis 9.) The reduction of microbial populations to safe Sanitization public health levels. Degerming 10.) The chemical disinfection of living tissue, such as skin or a mucous membrane. –cide 11.) The removal of transient microbes from skin –stat by mechanical cleansing or by an antiseptic. Commercial sterilization 12.) Heat sufficient only to kill endospores of the botulism bacterium. True or False (questions 13-14)
Answer the following questions 1.) Which is correct regarding the rate of microbial death? A. cells die at increasingly greater rates B. only older cells die in a culture C. cells in a culture die at a constant rate D. upon contact with the control agent, all cells die at one time E. cells become metabolically inactive but are never killed 2.) At what temperature do disinfectants work better? 3.) How would the amount of exposure of chemical antimicrobial agents differ? Explain your answer. 4.) When are endospores more resistant to heat? 5.) Explain the process of protein denaturing. Match the terms with the correct definition Matching: 6.) A suffix meaning “to kill.” 7.) Destroying or removing all forms of microbial life. 8.) The absence of pathogens on an object or area. 9.) The reduction of microbial populations to safe public health levels. 10.) The chemical disinfection of living tissue, such as skin or a mucous membrane. 11.) The removal of transient microbes from skin by mechanical cleansing or by an antiseptic. 12.) Heat sufficient only to kill endospores of the botulism bacterium. Disinfection Sterilization Antisepsis Asepsis Sanitization Degerming –cide –stat Commercial sterilization True or False (questions 13-14)
Microbial%20Control%20Assignment%201.docx