Physical and Chemical Agents Preservation of foods by using salts and sugars works by creating a hypertonic environment raising pH creating a hypotonic environment lowering osmotic pressure creating a hypertonic environment raising pH creating a hypotonic environment lowering osmotic pressure ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents If a 1:600 dilution of a test compound kills a standard population of Staphylococcus aureus in 10 minutes but not 5 minutes while a 1:60 dilution of phenol kills the population in the same time, what is the phenol coefficient of the test compound? 50 5 10 1 50 5 10 1 ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is not a disinfectant containing a heavy metal? Silver nitrate Copper sulfate Mercurochrome Chlorine Silver nitrate Copper sulfate Mercurochrome Chlorine ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following disinfectants act by disrupting microbial membranes? Heavy metals Aldehydes Halogens Cationic detergents Heavy metals Aldehydes Halogens Cationic detergents ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents The organisms retained in the fluids filtered by Seitz filter is Staphylococcus Clostridium None of these Proteus Staphylococcus Clostridium None of these Proteus ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which disinfectant would be most effective against Staphylococcus found in a blood spill? Phenol Hexachlorophene None of these Cetylpyridinium chloride Phenol Hexachlorophene None of these Cetylpyridinium chloride ANSWER DOWNLOAD EXAMIANS APP
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