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Microbiology

Microbiology
Bacteria are

saprophytic
hyper parasitic
all of these
symbiotic

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Microbiology
Slippery pickles occur due to

broken scums of film yeasts on the surface of brine
growth of encapsulated bacteria
both (a) and (b)
addition of high amount of salt

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Microbiology
Traveller's diarrhea is caused by

enteropathogenic Escherichia coli (EPEC)
entero haemorrhagic E. coli (EHEC)
entero toxigenic E. coli (ETEC)
entero invasive E. coli (EIEC)

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Microbiology
Soft pickles are made so by pectolytic enzymes mostly from

bacteria
none of these
moulds
yeasts

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Microbiology
In Widal test the significant titres for H agglutinins is

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

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Microbiology
The elimination of the scum of yeasts in the brine during the fermentation include

agitation of the surface
addition of the sorbic acid
addition of the mustard oil
all of these

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MORE MCQ ON Microbiology

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