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FINAL (2) LSUE MICRO LECTURE DR
AL | 50 QUESTIONS WITH 100%
CORRECT ANSWERS | VE RIFIED |
LATEST UPDATE
Question : Several pathogenic organisms are associated with
foods. These include typhoid bacilli, amoebic cysts, and hepatitis viruses. All of these causative agents of disease may accumulate in A.beef B.shellfish, such as clams C.salami D.dairy products E.eggs
Correct answer: shellfish , such as clams
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Question : which of the following statements about
staphyloccal food poisoning is false?
Correct answer: it can be prevented by boiling food for 5 mins
Question : microscopic examination of a patients fecal culture
shows spiral bacteria. the bacteria probably belongs to to the genus
Correct answer: camplyobacter
Question : clostridium perfringens causes both clostridial food
poisoning andq
Correct answer: Gas gangrene
Question : malta fever is caused by a
Correct answer: gran (-) rod, Brucella abortus
Question : An aerobic gram (+) sporeformer that causes food
poisoning is
Correct answer: bacillus cereus
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Question : Most food fall in a pH range of
Correct answer: 5-7
Question : the bacterial limit for pasteurized Grade A milk is
Correct answer: 20,000/ML
Question : the disease caused by streptococcus mutans is
Correct answer: dental caries
Question : bacterial intoxications differ from bacterial
infections of the digestive system in that intoxications
Correct answer: have shorter incubation time.
Question : sludge digestion
Correct answer: takes place under anaerobic conditions
Question : coliforms and fecal coliforms are often
differenciated based on there responce to
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Correct answer: temperature
Question : which of the following sequences is used in the
purification of water
Correct answer: flocculation,filtration, chlorilination
Question : Ascaris lumbricoides
Correct answer: the largest intestinal nematode and the cause
of roundworm disease
Question : a fever that often is high in the daytime and low in
the evening is assciated with brucelosis
Correct answer: uadulant fever
Question : which of the following does not always require the
presence of living bacteria
Correct answer: all of the choices
Question : the time required for a milk sample to change color
of added methylene blue is the basis for the