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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
Which of the following is the suitable temperature range for mesophiles?

>40°C
20-30°C
None of these
25-40°C

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Growth and Nutrition of Bacteria
Nutrient content and biological structures are considered as

implicit factor for microbial growth
None of these
intrinsic factor for microbial growth
processing factor

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Growth and Nutrition of Bacteria
What is the primary source of food for marine life?

Grass
Sea weed
Zooplankton
Phytoplankton

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Growth and Nutrition of Bacteria
The combination of low levels of NaCl, NaNO3 (sodium nitrate), and slightly acid pH can prevent multiplication and toxin formation of

Salmonella
S. aureus
C. botulinum
all of these

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Growth and Nutrition of Bacteria
What are the extrinsic factors for the microbial growth?

humidity
composition of gas phase
storage temperature
all of these

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Growth and Nutrition of Bacteria
Bacteria and fungi multiply best

above 38°C
between 16-38°C
none of these
below 16°C

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