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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
The organism which grows best above 45°C are called

mesosphilic
any of these
psychrophilic
thermophilic

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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
C. botulinum
S. aureus
all of these

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

Sea weed
Phytoplankton
Zooplankton
Grass

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Growth and Nutrition of Bacteria
A spore differs from an actively replicating bacterium in that the spore

is able to withstand more extreme conditions than the replicating cell
is metabolically inactive
All of these
is produced during a process involving asymmetric division

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Growth and Nutrition of Bacteria
Quantitative measurement of bacterial growth can be carried out by measuring

cell count
cell mass
cell activity
all of these

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Growth and Nutrition of Bacteria
Antimicrobial constituents for the microbial growth in foods are

none of these
extrinsic factor
both (a) and (b)
intrinsic factor

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