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Growth and Nutrition of Bacteria

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

lag phase
stationary phase
decline phase
log phase

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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

C. botulinum
all of these
Salmonella
S. aureus

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Growth and Nutrition of Bacteria
The microorganisms that grow best in a low-oxygen environment is called a (n)

facultative
microaerophile
aerobe
anaerobe

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Growth and Nutrition of Bacteria
An organism is completely dependent on atmospheric O2 for growth. This organism is

acidophile
obligate aerobe
facultative anaerobe
osmotolerant

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Growth and Nutrition of Bacteria
All organisms require at least small amounts of carbondioxide, However, some can use CO2 as their sole source of carbon. Such organisms are termed as

photo-organotrophs
chemotrophs
autotrophs
phototrophs

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Growth and Nutrition of Bacteria
Lag phase is also known as

none of these
transitional period
period of initial adjustment
generation time

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