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Growth and Nutrition of Bacteria

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
Antimicrobial constituents for the microbial growth in foods are

none of these
intrinsic factor
extrinsic factor
both (a) and (b)

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Growth and Nutrition of Bacteria
Some organisms can use reduced inorganic compounds as electron donors and are termed as

chemotrophs
lithotrophs
phototrophs
photo-organotrophs

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Growth and Nutrition of Bacteria
Pseudomonas pseudoflava can grow as

none of these
both (a) and (b)
chemo-organotrophs
chemo-lithotrophs

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

succinate
light
ammonia
H2S

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Growth and Nutrition of Bacteria
An organism that expends energy to grow in a habitat with a low water activity in order to maintain internal solute concentrations to retain water is

acidophile
aerotolerant anaerobe
alkalophile
osmotolerant

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