Exercise: Fermentation Kinetics

Questions for: Fermentation Kinetics

Heat transfer rates (per unit volume) will be lowest in
A:
Stirred tank bioreactor with biomass recycle
B:
Continuous air lift bioreactor
C:
Continuous packed bed reactor
D:
Continuous fluidized bed bioreactor
Answer: C
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When intracellular enzymes of whole cells are to be used in a bio-conversion process, it is often necessary to____________the cells.
A:
permeabilize
B:
lyophilize
C:
heat-kill
D:
denature
Answer: A
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Bacterial growth curve is obtained by plotting
A:
number of cells versus time
B:
number fo spores versus time
C:
log of number of cells versus time
D:
log of number of cells survived versus time
Answer: C
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Fermentor should be filled with medium upto
A:
65-70%
B:
70-75%
C:
75-80%
D:
80-85%
Answer: C
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Wash out in steady state fermentation occurs when
A:
dilution rate is less than maximum specific growth rate
B:
dilution rate is higher than the maximum specific growth rate
C:
cell concentration reaches the maximum
D:
specific growth rate is maximum
Answer: B
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