Exercise: Ethanol Production

Questions for: Ethanol Production

Which of the following organism is not used in any of the traditional industrial fermentation?
A:
E. coli
B:
Yeast
C:
Bacillus
D:
Pseudomonas
Answer: A
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The Zygomonas has a merit over yeast because
A:
it has more osmotic tolerance to higher sugar concentration
B:
it has high tolerance to ethanol
C:
it has more specific growth rate
D:
all of the above
Answer: D
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After the fermentation is over, ethanol is recovered by
A:
centrifugation
B:
distillation
C:
filtration
D:
cell disintegration
Answer: B
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Which of the following microorganisms help in the ethanol production?
A:
Saccharomyces cerevisiae
B:
Zygomonas mobilis
C:
Saccharomyces uvarum
D:
All of these
Answer: D
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S cerevisiae start producing ethanol with in
A:
10 h
B:
12 h
C:
15 h
D:
24 h
Answer: B
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