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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
between 16-38°C
none of these

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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

osmotolerant
aerotolerant anaerobe
alkalophile
acidophile

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Growth and Nutrition of Bacteria
Nutrient content and biological structures are considered as

None of these
processing factor
implicit factor for microbial growth
intrinsic factor for microbial growth

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Growth and Nutrition of Bacteria
The growth is normally expressed as __________ in turbidimetric measurement

cells per ml
optical density
cfu/ml
mg N2 /ml

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

chemotrophs
photo-organotrophs
phototrophs
lithotrophs

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Growth and Nutrition of Bacteria
The term aerotolerant anaerobe refers to an organism that

requires less oxygen than is present in air
prefers to grow without oxygen
is killed by oxygen
doesn't use oxygen but can grow in the presence of oxygen

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