Exercise: Fermentation Reactors

Questions for: Fermentation Reactors

Mixing profiles closest to plug flow are observed in
A:
continuous packed bed reactor
B:
stirred tank reactor with biomass recycles
C:
continuous fluidized bed bioreactor
D:
all of these
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
When a culture of fermenting yeast becomes metabolically uncoupled, ethanol
A:
becomes a secondary metabolite
B:
production becomes growth associated
C:
production becomes non-growth associated
D:
becomes a growth nutrient
Answer: C
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Fed batch reactors is used to produce vinegar because
A:
it can maintain low ethanol concentrations
B:
it can maintain low acetic acid concentrations
C:
acetic acid bacteria tend to ferment at high ethanol concentrations
D:
all of the above
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
The main reason for production of antibiotics in fed batch reactors is
A:
the presence of precursors is often toxic to the cells
B:
higher yields when cells enter the stationary phase
C:
higher yields when cell growth slows
D:
all of the above
Answer: D
No answer description is available. Let's discuss.
📖
📝
💬
👁️
A culture system with constant environmental conditions maintained through continual provision of nutrient and removal of wastes is called __________ culture system.
A:
continuous
B:
batch
C:
fed-batch
D:
semi continuous
Answer: A
No answer description is available. Let's discuss.
📖
📝
💬
👁️
Ad Slot (Above Pagination)
Quiz