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Growth and Nutrition of Bacteria

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

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

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Growth and Nutrition of Bacteria
Which of the following procedures uses a photocell to measure absorbance of a culture to regulate the flow of culture media?

Petroff-Hausser chamber
Trubidostat
Hemostat
Coulter Counter

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Growth and Nutrition of Bacteria
Autotrophic bacteria are those which

make their own food
form a long chain glycocalyx
produce a blue-green pigment
are highly susceptible to penicillin

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Growth and Nutrition of Bacteria
Generation time of Escherichia coli is

200 hours
20 hours
20 days
20 minutes

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

is killed by oxygen
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

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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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