Exercise: Growth And Nutrition Of Bacteria

Questions for: Growth And Nutrition Of Bacteria

The equation used to obtain bacterial population by binary fission is
A:
N = No2n
B:
log N/No = (0.3010) n
C:
log(N/No) = nlog 2
D:
All of these
Answer: D
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The straightforward method of binary fission explains how bacteria
A:
grow in nutrient agar
B:
evolve
C:
move
D:
reproduce
Answer: D
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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
A:
osmotolerant
B:
acidophile
C:
aerotolerant anaerobe
D:
alkalophile
Answer: A
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Which of the following organisms typically get their carbon for biosynthesis from carbon dioxide?
A:
Glucose-fermenting bacteria (fermentation)
B:
Anaerobic, glucose-respiring bacteria (anaerobic respiration)
C:
Aerobic, glucose-respiring bacteria (aerobic respiration)
D:
Ammonia-oxidizing bacteria (chemolithotrophic bacteria)
Answer: D
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The growth is normally expressed as __________ in turbidimetric measurement
A:
cells per ml
B:
cfu/ml
C:
optical density
D:
mg N2 /ml
Answer: C
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