Week 4 - BIOS 242 Exam Questions And Answers

Week 4 - BIOS 242 Exam Questions And Answers sterilization - ANS refers to the removal or destruction of all microbes, including viruses and bacterial endospores, in or on an object aseptic - ANS describes an environment or procedure that is free of contamination by pathogens disinfection - ANS refers to the use of physical or chemical agents known as disinfectants, including UV light, heat, alcohol, and bleach, to inhibit or destroy microorganisms antisepsis - ANS when a chemical is used on skin or other tissue aseptic - ANS refers to an environment or procedure free of pathogenic contaminants disinfectants are more concentrated or can be left on a surface for longer periods of time - ANS what is the difference between antiseptics and disinfectants? degerming - ANS removal of microbes from a surface by scrubbing, such as when you wash your hands or a nurse prepares an area of skin for an injection sanitization - ANS the process of disinfecting places and utensils used by the public to reduce the number of pathogenic microbes to meet accepted public health standards pasteurization - ANS the use of heat to kill pathogens and reduce the number of spoilage microorganisms in food and beverages -stasis / -static - ANS indicates that a chemical or physical agent inhibits microbial metabolism and growth but does not necessarily kill microbes -cide / -cidal - ANS refer to agents that destroy or permanently inactivate a particular type of microbe microbial death - ANS the permanent loss of reproductive ability under ideal environmental conditions microbial death rate - ANS one technique for evaluating the efficacy of an antimicrobial agent, which is usually found to be constant over time for any particular microorganism under a particular set of conditions the plot is a straight line (meaning it is constant) - ANS what does a plot of microbial death rate look like?