Physical and Chemical Agents Preservation of foods by using salts and sugars works by creating a hypotonic environment raising pH creating a hypertonic environment lowering osmotic pressure creating a hypotonic environment raising pH creating a hypertonic 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? 1 50 5 10 1 50 5 10 ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following disinfectants act by disrupting microbial membranes? Heavy metals Aldehydes Cationic detergents Halogens Heavy metals Aldehydes Cationic detergents Halogens ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following process can be efficiently carried out by incineration? Sterilization of points of forceps Sterilization of all glass syringes Sterilization of scalpel blades and needles Destruction of contaminated materials Sterilization of points of forceps Sterilization of all glass syringes Sterilization of scalpel blades and needles Destruction of contaminated materials ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following skin disinfectant(s) is/are most frequently used? Both (a) and (b) Ethyl alcohol Isopropyl alcohol none of these Both (a) and (b) Ethyl alcohol Isopropyl alcohol none of these ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents The process of making an object free from living organisms including bacterial and fungal spores and viruses is known as disinfection antisepsis sterilization pasteurization disinfection antisepsis sterilization pasteurization ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS