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Microbiology

Microbiology
Bacteria are

hyper parasitic
saprophytic
symbiotic
all of these

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Microbiology
Which of the following is a food infection?

Staphylococcal intoxication
Salmonellois
None of these
Botulism

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Microbiology
Salmonellois is caused by the

endotoxin of Salmonella spp
exoenterotoxin of Salmonella spp
enterotoxin of Salmonella spp
neurotoxin of Salmonella spp

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Microbiology
Which of the following determine the pathogenicity of Yersinia pestis?

Production of pigmented colonies on haemin containing media
V and W antigens
All of these
F1 envelope antigen

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Microbiology
The enzyme, which hydrolyses the murein is

perxoidase
lysozyme
tannase
none of these

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Microbiology
Heat-labile enterotoxin of Escherichia coli activates

both (a) and (b)
guanylate cyclase
adenylate cyclase
none of these

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