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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
A microbe, which grows at temperatures above 95° C is most likely to be

a fungus
a protozoan
none of these
an archaean

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

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

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Growth and Nutrition of Bacteria
Bacteria and fungi multiply best

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

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Growth and Nutrition of Bacteria
The equation used to obtain bacterial population by binary fission is

N = No2n
log N/No = (0.3010) n
log(N/No) = nlog 2
All of these

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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

aerotolerant anaerobe
osmotolerant
acidophile
neutrophile

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Growth and Nutrition of Bacteria
Organisms such as lactobacilli that have elaborate requirements for specific nutrients i.e. vitamins and other growth promoting substances, are generally called as

chemo-lithotrophs
fastidious hetrotrophs
chemotrophs
photo-organotrophs

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