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 disinfectant would be most effective against Staphylococcus found in a blood spill? Cetylpyridinium chloride Hexachlorophene Phenol None of these Cetylpyridinium chloride Hexachlorophene Phenol None of these ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following does not kill endospores? Hot air sterilization Autoclave Pasteurization Incineration Hot air sterilization Autoclave Pasteurization Incineration ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following methods will not sterilize? Aqueous glutaraldehyde for 10 hours 121°C at 15 lb/in pressure for 15 to 20 minutes Dry heat at 171°C for 1 to 2 hours 100°C boiling water for 30 minutes Aqueous glutaraldehyde for 10 hours 121°C at 15 lb/in pressure for 15 to 20 minutes Dry heat at 171°C for 1 to 2 hours 100°C boiling water for 30 minutes ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Ethylene oxide is used to destroy or kill which of the following microbes? Bacteria Spores Fungi All of these Bacteria Spores Fungi All of these ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents The time required to kill 90% of the microorganisms in a sample at a specific temperature is the thermal death point F value decimal reduction time D value thermal death point F value decimal reduction time D value ANSWER DOWNLOAD EXAMIANS APP
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