Physical and Chemical Agents Preservation of foods by using salts and sugars works by creating a hypotonic environment creating a hypertonic environment lowering osmotic pressure raising pH creating a hypotonic environment creating a hypertonic environment lowering osmotic pressure raising pH ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following has most heat resistant spores? Bacillus stearothermophilus Clostridium histolyticum Clostridium perfringens Bacillus cereus Bacillus stearothermophilus Clostridium histolyticum Clostridium perfringens Bacillus cereus ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following compounds are commonly used as general antiseptics to treat cuts and scratches? Aldehydes Ethylene oxide None of these Halogens Aldehydes Ethylene oxide None of these Halogens 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 Acidophile Obligate Aerobe Mesophile Obligate Anaerobe Acidophile Obligate Aerobe ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is bactericidal? Freeze-drying Membrane filtration Ionizing radiation Deep freezing Freeze-drying Membrane filtration Ionizing radiation Deep freezing ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following describes the effect of ionizing radiation on microbes? None of these Changes the 3-dimensional structure of proteins to a 2-dimen-sional form Induces electrons and protons to jump out of the molecules of the microbe Substantially decreases enzymatic activity, slowing microbial reproduction None of these Changes the 3-dimensional structure of proteins to a 2-dimen-sional form Induces electrons and protons to jump out of the molecules of the microbe Substantially decreases enzymatic activity, slowing microbial reproduction ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS