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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
The cell reproduction in bacteria may occur by

binary fission
budding
all of these
fragmentation

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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
all of these
S. aureus
C. botulinum

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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
A spore differs from an actively replicating bacterium in that the spore

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

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Growth and Nutrition of Bacteria
The equation used to obtain bacterial population by binary fission is

All of these
N = No2n
log(N/No) = nlog 2
log N/No = (0.3010) n

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Growth and Nutrition of Bacteria
The period between inoculation of bacteria in a culture medium and beginning of multiplication is known as

decline phase
log phase
lag phase
stationary phase

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