Physical and Chemical Agents Media containing spores and thermolabile constituents are sterilized by tyndalization pasteurization dry heat UV radiation tyndalization pasteurization dry heat UV radiation ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Microbes can be removed from a liquid solution by the process of filtration freeze-drying desiccation osmosis filtration freeze-drying desiccation osmosis 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 Preservation of foods by using salts and sugars works by lowering osmotic pressure creating a hypotonic environment creating a hypertonic environment raising pH lowering osmotic pressure creating a hypotonic environment creating a hypertonic environment raising pH ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is best used for long term storage of microbial samples when carried out properly? Storage on a petri plate at room temperature Storage in a refrigerator on an agar slant Storage in a freezer at ultra low temperatures (-70°C) Storage in a freezer at -10°C Storage on a petri plate at room temperature Storage in a refrigerator on an agar slant Storage in a freezer at ultra low temperatures (-70°C) Storage in a freezer at -10°C 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 F value D value thermal death point decimal reduction time F value D value thermal death point decimal reduction time ANSWER DOWNLOAD EXAMIANS APP
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