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Growth and Nutrition of Bacteria

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

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

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Growth and Nutrition of Bacteria
The microorganisms that grow best in a low-oxygen environment is called a (n)

facultative
aerobe
anaerobe
microaerophile

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

Hemostat
Coulter Counter
Chemostat
Petroff-Hausser chamber

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

uses oxygen when present or grows without oxygen when absent
doesn't use oxygen but tolerates it
requires less oxygen than is present in air
is killed by oxygen

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

photo-organotrophs
chemotrophs
phototrophs
lithotrophs

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Growth and Nutrition of Bacteria
Autotrophic bacteria are those which

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

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