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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

log phase
lag phase
decline phase
stationary phase

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

fragmentation
budding
all of these
binary fission

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

storage temperature
all of these
humidity
composition of gas phase

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Growth and Nutrition of Bacteria
The ability of Vibrio fischeri to produce bioluminescence chemicals only when a certain population density has been reached is an example of

Heisenberg's principle of uncertainty
quorum sensing
Shelford's law of tolerance
Liebig's law of the minimum

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

obligate aerobe
osmotolerant
acidophile
facultative anaerobe

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Growth and Nutrition of Bacteria
An organism that expends energy to grow in a habitat with a low water activity in order to maintain internal solute concentrations to retain water is

alkalophile
acidophile
aerotolerant anaerobe
osmotolerant

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