Sweet and salty foods frequently don't require refrigeration to prevent spoilage because they have insufficient nutrients toxic alkaline chemicals low pH high concentration of solutes TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following does not kill endospores? Autoclave Incineration Pasteurization Hot air sterilization TRUE ANSWER : ? YOUR ANSWER : ?
The organisms retained in the fluids filtered by Seitz filter is None of these Clostridium Staphylococcus Proteus TRUE ANSWER : ? YOUR ANSWER : ?
Complete destruction of the microorganisms is commonly known as none of these sterilization disinfection antisepsis TRUE ANSWER : ? YOUR ANSWER : ?
The time required to kill 90% of the microorganisms in a sample at a specific temperature is the decimal reduction time thermal death point D value F value TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following disinfectants act by disrupting microbial membranes? Aldehydes Cationic detergents Halogens Heavy metals TRUE ANSWER : ? YOUR ANSWER : ?
If a canning procedure is not properly followed, which type of microbe is most likely to grow in the canned food? Obligate Aerobe Acidophile Mesophile Obligate Anaerobe TRUE ANSWER : ? YOUR ANSWER : ?
Iodophores are mixture of iodine and phenols iodine and surface active agents iodine and aldehydes iodine and alcohols TRUE ANSWER : ? YOUR ANSWER : ?
One drawback to the use of ultraviolet light as a sterilizing agent is its failure to kill microbes in a closed environment failure to kill bacteria failure to bacterial spores failure to kill microbes located in the center of an object TRUE ANSWER : ? YOUR ANSWER : ?
Which is the most important surface active disinfectants? Non-ionic compounds Anionic compounds Amphoteric compounds Cationic compounds TRUE ANSWER : ? YOUR ANSWER : ?