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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
Which of the following is the suitable temperature range for mesophiles?

None of these
25-40°C
>40°C
20-30°C

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Growth and Nutrition of Bacteria
What are the extrinsic factors for the microbial growth?

humidity
all of these
composition of gas phase
storage temperature

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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

neutrophile
aerotolerant anaerobe
acidophile
osmotolerant

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Growth and Nutrition of Bacteria
The average size of cells during the exponential phase of growth is

equal to the lag phase
none of these
greater than the lag phase
lesser than the lag phase

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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
is metabolically inactive
All of these
is able to withstand more extreme conditions than the replicating cell

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Growth and Nutrition of Bacteria
The reproduction by budding occur in

Hyphomicrobium vulgare
Rhodopseudomonas acidophila
Both (a) and (b)
Bacillus subtilis

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