Physical and Chemical Agents Preservation of foods by using salts and sugars works by raising pH creating a hypotonic environment lowering osmotic pressure creating a hypertonic environment raising pH creating a hypotonic environment lowering osmotic pressure creating a hypertonic environment ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following methods will not sterilize? Dry heat at 171°C for 1 to 2 hours 100°C boiling water for 30 minutes 121°C at 15 lb/in pressure for 15 to 20 minutes Aqueous glutaraldehyde for 10 hours Dry heat at 171°C for 1 to 2 hours 100°C boiling water for 30 minutes 121°C at 15 lb/in pressure for 15 to 20 minutes Aqueous glutaraldehyde for 10 hours ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents For sterilization of which material gamma rays can be used? Plastic syringes Canulas Catheters None of these Plastic syringes Canulas Catheters 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 Which of the following is sterilized with the help of glutaraldehyde? Bronchoscopes Thermometers Cystoscopes All of these Bronchoscopes Thermometers Cystoscopes All of these ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is a limitation of the autoclave? It lacks the ability to inactivate viruses It takes too long to sterilize It will destroy heat labile materials It lacks the ability to kill endospores It lacks the ability to inactivate viruses It takes too long to sterilize It will destroy heat labile materials It lacks the ability to kill endospores ANSWER DOWNLOAD EXAMIANS APP
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