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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
Coulter Counter
Petroff-Hausser chamber

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

a protozoan
an archaean
a fungus
none of these

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Growth and Nutrition of Bacteria
During exponential growth, the growth rate is

number of generations per unit time
reciprocal of generation time
both (a) and (b)
none of these

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Growth and Nutrition of Bacteria
Organisms such as lactobacilli that have elaborate requirements for specific nutrients i.e. vitamins and other growth promoting substances, are generally called as

chemo-lithotrophs
fastidious hetrotrophs
chemotrophs
photo-organotrophs

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Growth and Nutrition of Bacteria
In the exponential phase, the cells and cell mass

first increases then decreases
decreases
double at a constant rate
are constant

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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
Trubidostat
Petroff-Hausser chamber
Hemostat

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