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Growth and Nutrition of Bacteria

Growth and Nutrition of Bacteria
Organisms, using organic compounds as electron donors are called

organotrophs
lithotrophs
phototrophs
chemotrophs

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

doesn't use oxygen but tolerates it
prefers to grow without oxygen
is killed by oxygen
uses oxygen when present or grows without oxygen when oxygen is absent

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Growth and Nutrition of Bacteria
Which of the following has more tolerance for acidic pH (lower pH)?

Bacteria
Yeast and moulds
None of these
E. coli

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Growth and Nutrition of Bacteria
The cell reproduction in bacteria may occur by

fragmentation
all of these
budding
binary fission

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Growth and Nutrition of Bacteria
Generation time of Escherichia coli is

20 days
20 hours
20 minutes
200 hours

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Growth and Nutrition of Bacteria
Which of the following is used to grow bacterial cultures continuously?

Chemostat
Hemostat
Petroff-Hausser chamber
Coulter Counter

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