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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
The organism which obtain their energy from chemicals are designated as

chemotrophs
organotrophs
prototrophs
autotrophs

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Growth and Nutrition of Bacteria
A synergistic effect is observed when

All of these
one organism removes an inhibitory substance for another
microbial alteration of pH, aw, Eh favours the growth of another
one organism produces a growth factor utilized by another

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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
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
Liebig's law of the minimum
Shelford's law of tolerance
quorum sensing

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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

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

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Growth and Nutrition of Bacteria
Organisms, using organic compounds as electron donors are called

chemotrophs
phototrophs
organotrophs
lithotrophs

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MORE MCQ ON Growth and Nutrition of Bacteria

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