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Microbiology

Microbiology
Gassy spoilage of green olives is usually caused by

Enterobacter spp
all of these
Bacillus spp
Clostridium spp

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Microbiology
Which of the following can readily kill Salmonellae?

Moist heat at 55°C for 20 min
Moist heat at 55°C for 1 hr
Moist heat at 55°C for 30 min
Moist heat at 55°C for 10 min

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Microbiology
Shriveling in fermented pickles results from the physical effect of

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

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Microbiology
The growth of black-pigmented Bacillus nigrificans, a causative agent of black pickle is favoured by

neutral or slightly alkaline brine
All of these
presence of carbohydrate like glucose
low level of available nitrogen

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Microbiology
Which of the following gram-positive bacteria causes pharyngitis (sore throat)?

Mycobacterium
Staphylococcus
Streptococcus
Neisseria

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Microbiology
Bacteria are

saprophytic
hyper parasitic
all of these
symbiotic

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MORE MCQ ON Microbiology

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