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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?

Petroff-Hausser chamber
Coulter Counter
Hemostat
Chemostat

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

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

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Growth and Nutrition of Bacteria
The organism which obtain their energy from chemicals are designated as

organotrophs
autotrophs
prototrophs
chemotrophs

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Growth and Nutrition of Bacteria
Exponential phase of growth curve of bacteria is of limited duration because of

rise in cell density
accumulation of toxic metabolites
all of these
exhaustion of nutrients

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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
a thermophile
an obligate aerobe
incapable of cell division

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

light
ammonia
H2S
succinate

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