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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

a fungus
none of these
a protozoan
an archaean

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

Chemostat
Hemostat
Petroff-Hausser chamber
Coulter Counter

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

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

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Growth and Nutrition of Bacteria
A synergistic effect is observed when

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

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Growth and Nutrition of Bacteria
Bacteria and fungi multiply best

between 16-38°C
below 16°C
above 38°C
none of these

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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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