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Microbiology

Microbiology
The bacteria which produce(s) β-galactosidase is/are

all of these
Citrobacter
Enterohacter
Serratia

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Microbiology
The gram-positive bacteria lack __________ structure/component?

outer membrane
murein
teichoic acid
plasma membrane

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Microbiology
The Bacillus cereus causes gasteroenteritis by the production of an exoenterotoxin which is released in food as a result of

cell autolysis
cell damage
cell permeation
cell growth

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Microbiology
A bacterial food intoxication refers to

illness caused by presence of pathogens
both (a) and (b)
None of these
food borne illness caused by the presence of a bacterial toxin formed in food

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Microbiology
Enterobacter can be differentiated from Klebsiella by

both (a) and (b)
ornithine positivity
motility
none of these

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Microbiology
Staphylococcal intoxication is caused by the toxin m the food from

S. thermophillus
Staphylococcus aureus
none of these
S. cerevisiae

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MORE MCQ ON Microbiology

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