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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
Chemostat
Petroff-Hausser chamber
Coulter Counter

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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
Quantitative measurement of bacterial growth can be carried out by measuring

all of these
cell count
cell mass
cell activity

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Growth and Nutrition of Bacteria
Nutrient content and biological structures are considered as

intrinsic factor for microbial growth
processing factor
implicit factor for microbial growth
None of these

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Growth and Nutrition of Bacteria
All organisms require at least small amounts of carbondioxide, However, some can use CO2 as their sole source of carbon. Such organisms are termed as

phototrophs
autotrophs
photo-organotrophs
chemotrophs

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Growth and Nutrition of Bacteria
Bacteria of genus Nitrosomonas use __________ as their electron source.

succinate
H2S
ammonia
light

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