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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
Which of the following is used to grow bacterial cultures continuously?

Hemostat
Petroff-Hausser chamber
Chemostat
Coulter Counter

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Growth and Nutrition of Bacteria
Exponential phase of growth curve of bacteria is of limited duration because of

all of these
exhaustion of nutrients
accumulation of toxic metabolites
rise in cell density

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

acidophile
osmotolerant
facultative anaerobe
obligate aerobe

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Growth and Nutrition of Bacteria
The total biomass of an organism will be determined by the nutrient present in the lowest concentration relative to the organism's requirements is a statement of

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

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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

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

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Growth and Nutrition of Bacteria
Postgates assay technique is useful in determining if a cell is viable even though it is

too small to see
incapable of cell division
a thermophile
an obligate aerobe

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