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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
A microbe, which grows at temperatures above 95° C is most likely to be

a protozoan
none of these
an archaean
a fungus

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

obligate aerobe
acidophile
facultative anaerobe
osmotolerant

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

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

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Growth and Nutrition of Bacteria
Microaerophilic bacteria are those which require

oxygen for activation of enzymes
None of these
low levels of oxygen for growth (lesser than O2 present in atmosphere)
21 % oxygen for growth

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Growth and Nutrition of Bacteria
Which of the following procedures uses a photocell to measure absorbance of a culture to regulate the flow of culture media?

Coulter Counter
Hemostat
Trubidostat
Petroff-Hausser chamber

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