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Microbiology

Microbiology
Soft pickles are made so by pectolytic enzymes mostly from

moulds
yeasts
none of these
bacteria

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

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Microbiology
Sylvatic plague occurs in

all of these
mice
squirrels
chipmunks

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

plasma membrane
outer membrane
murein
teichoic acid

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Microbiology
Which of the following is a food infection?

Salmonellois
Staphylococcal intoxication
None of these
Botulism

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Microbiology
The favouring conditions for floaters is

both (a) and (b)
thick skin that does not allow gas to diffuse out
high intial amounts of salt
none of these

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