Physical and Chemical Agents One drawback to the use of ultraviolet light as a sterilizing agent is its failure to kill microbes in a closed environment failure to kill microbes located in the center of an object failure to kill bacteria failure to bacterial spores failure to kill microbes in a closed environment failure to kill microbes located in the center of an object failure to kill bacteria failure to bacterial spores ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following compounds are commonly used as general antiseptics to treat cuts and scratches? Halogens Aldehydes Ethylene oxide None of these Halogens Aldehydes Ethylene oxide None of these ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following describes the effect of ionizing radiation on microbes? Changes the 3-dimensional structure of proteins to a 2-dimen-sional form Induces electrons and protons to jump out of the molecules of the microbe Substantially decreases enzymatic activity, slowing microbial reproduction None of these Changes the 3-dimensional structure of proteins to a 2-dimen-sional form Induces electrons and protons to jump out of the molecules of the microbe Substantially decreases enzymatic activity, slowing microbial reproduction None of these ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Preservation of foods by using salts and sugars works by lowering osmotic pressure creating a hypertonic environment raising pH creating a hypotonic environment lowering osmotic pressure creating a hypertonic environment raising pH creating a hypotonic environment ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following does not kill endospores? Hot air sterilization Pasteurization Autoclave Incineration Hot air sterilization Pasteurization Autoclave Incineration ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which is the most important surface active disinfectants? Amphoteric compounds Cationic compounds Anionic compounds Non-ionic compounds Amphoteric compounds Cationic compounds Anionic compounds Non-ionic compounds ANSWER DOWNLOAD EXAMIANS APP
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