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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
Bacteria and fungi multiply best

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

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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

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

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Growth and Nutrition of Bacteria
An organism has an optimal growth rate when the hydrogen ion concentration is very high. This organism is

acidophile
osmotolerant
neutrophile
aerotolerant anaerobe

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

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

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

Coulter Counter
Chemostat
Hemostat
Petroff-Hausser chamber

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Growth and Nutrition of Bacteria
A spore differs from an actively replicating bacterium in that the spore

is produced during a process involving asymmetric division
All of these
is able to withstand more extreme conditions than the replicating cell
is metabolically inactive

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