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Microbiology

Microbiology
Coliform bacteria on fermentation of carbohydrates yields

all of these
lactic acid
acetic acid
formic acid

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Microbiology
Heat-stable enterotoxin of Escherichia coli activates

none of these
adenylate cyclase
both of the above
guanylate cyclase

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Microbiology
Shriveling in fermented pickles results from the physical effect of

too strong vinegar solution
all of these
too strong sugar solution
too strong salt solution

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Microbiology
The bacteria that is negative for fermentation of mannitol is

S flexneri
S sonnei
S dysenteriae
S boydii

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Microbiology
Slimy or ropy kraut is caused by

encapsulated varieties of Lactobacillus plantarum
encapsulated varieties of Lactobacillus brevis
Lactobacillus lactis
None of these

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Microbiology
Which of the following is a food infection?

Botulism
None of these
Staphylococcal intoxication
Salmonellois

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