Physical and Chemical Agents Which of the following is best used for long term storage of microbial samples when carried out properly? 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 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) ANSWER DOWNLOAD EXAMIANS APP
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 Which of the following is best to sterilize heat labile solutions? Membrane filtration Autoclave Pasteurization Dry heat Membrane filtration Autoclave Pasteurization Dry heat ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents If a canning procedure is not properly followed, which type of microbe is most likely to grow in the canned food? Mesophile Acidophile Obligate Aerobe Obligate Anaerobe Mesophile Acidophile Obligate Aerobe Obligate Anaerobe ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Microbes can be removed from a liquid solution by the process of desiccation freeze-drying filtration osmosis desiccation freeze-drying filtration osmosis ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following tests is designed to simulate the natural conditions under which the disinfectants are used in hospitals? Minimum inhibitory concentration test None of these Capacity test Phenol coefficient test Minimum inhibitory concentration test None of these Capacity test Phenol coefficient test ANSWER DOWNLOAD EXAMIANS APP
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