Physical and Chemical Agents Preservation of foods by using salts and sugars works by creating a hypertonic environment lowering osmotic pressure creating a hypotonic environment raising pH creating a hypertonic environment lowering osmotic pressure creating a hypotonic environment raising pH 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 Obligate Anaerobe Obligate Aerobe Acidophile Mesophile Obligate Anaerobe Obligate Aerobe Acidophile ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following has most heat resistant spores? Bacillus stearothermophilus Clostridium histolyticum Bacillus cereus Clostridium perfringens Bacillus stearothermophilus Clostridium histolyticum Bacillus cereus Clostridium perfringens ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents The organisms retained in the fluids filtered by Seitz filter is Staphylococcus None of these Proteus Clostridium Staphylococcus None of these Proteus Clostridium 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 in a refrigerator on an agar slant Storage in a freezer at ultra low temperatures (-70°C) Storage on a petri plate at room temperature Storage in a freezer at -10°C Storage in a refrigerator on an agar slant Storage in a freezer at ultra low temperatures (-70°C) Storage on a petri plate at room temperature Storage in a freezer at -10°C ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following compounds are commonly used as general antiseptics to treat cuts and scratches? None of these Ethylene oxide Halogens Aldehydes None of these Ethylene oxide Halogens Aldehydes ANSWER DOWNLOAD EXAMIANS APP
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