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Microbiology

Microbiology
Gassy spoilage of green olives is usually caused by

Clostridium spp
Bacillus spp
all of these
Enterobacter spp

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Microbiology
The reaction(s) that is/are usually positive in Escherichia coli, is/ are

Indole reaction
Glucose fermentation
Methyl red reaction
All of these

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Microbiology
Black kraut is caused by

the micro-organisms
None of these
the plant enzymes
the combined actions of plant enzymes and micro-organisms

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Microbiology
Too long a fermentation of sauerkraut may favour the growth of

Lactobacillus brevis
none of these
Lactobacillus lactis
Bacillus subtilis

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Microbiology
In Widal test the significant titres for H agglutinins is

1:200 or more
1:400 or more
1:50 or more
1:100 ormore

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Microbiology
Dysentery may be caused by

enteroinvasive E. coli
enteropathogenic Escherichia coli
enterotoxigenic E. coli
verotoxigenic E. coli

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MORE MCQ ON Microbiology

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