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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

none of these
an archaean
a fungus
a protozoan

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

Petroff-Hausser chamber
Coulter Counter
Chemostat
Hemostat

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Growth and Nutrition of Bacteria
The organism which grows best above 45°C are called

psychrophilic
mesosphilic
any of these
thermophilic

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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?

Petroff-Hausser chamber
Coulter Counter
Trubidostat
Hemostat

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Growth and Nutrition of Bacteria
Antimicrobial constituents for the microbial growth in foods are

both (a) and (b)
extrinsic factor
none of these
intrinsic factor

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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
quorum sensing
Shelford's law of tolerance

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