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Biochemical Engineering
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Immobilized Enzyme
See What Others Are Saying!
Question
The support material for immobilization of cells of
Bacillus subtilis
is
Options
A. ion exchange resins
B. gelatin
C. Anthracite
D. agarose and carbodiimide
Correct Answer
agarose and carbodiimide
More questions
1. The viscosity of water at STP is approximately
Options
A. 0.005 kg.m
-1
.s
-1
B. 0.001 kg.m
-1
.s
-1
C. 0.003 kg.m
-2
.s
-1
D. 0.1 g.cm
-1
.s
-1
Show Answer
Scratch Pad
Discuss
Correct Answer: 0.001 kg.m
-1
.s
-1
2. The collection efficiency by diffusion increases with
Options
A. decreasing particle size
B. decreasing air velocity
C. both (a) and (b)
D. increasing particle size
Show Answer
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Discuss
Correct Answer: both (a) and (b)
3. Which of the following activity is possible by transferases?
Options
A. Transfer of methyl groups
B. Transfer of glycosyl group
C. Both (a) and (b)
D. None of these
Show Answer
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Discuss
Correct Answer: Both (a) and (b)
4. Bacterial growth curve is obtained by plotting
Options
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
Show Answer
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Discuss
Correct Answer: log of number of cells versus time
5. The fastest route of NADH reoxidation is
Options
A. aerobic respiration
B. anaerobic respiration
C. fermentation
D. decomposition
Show Answer
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Discuss
Correct Answer: fermentation
6. The contents in jet loop reactor are mixed through
Options
A. compressed air
B. a mechanical agitator
C. external pumping
D. any of these
Show Answer
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Discuss
Correct Answer: external pumping
7. The number of baffles in a standard stirred tank bioreactor is
Options
A. 8
B. 6
C. 4
D. 2
Show Answer
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Discuss
Correct Answer: 4
8. Which of the following chemical is sometime added in the process of coagulation and flocculation?
Options
A. Aluminum sulphate
B. Aluminum oxide
C. Calcium chloride
D. None of these
Show Answer
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Discuss
Correct Answer: Aluminum sulphate
9. The high oxygen transfer efficiencies of airlift bioreactors is due to
Options
A. the large aspect ratio of the reactor, which leads to a high gas hold-up
B. the large aspect ratio of the reactor, which leads to a high oxygen solubility at the base of the reactor
C. the draft tube, which reduces bubble coalescence in the reactor
D. all of the above
Show Answer
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Correct Answer: all of the above
10. The region of an airlift bioreactor in which the liquid travels in a downward direction is called the
Options
A. downcomer
B. disengagement zone
C. air riser
D. flotsam
Show Answer
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Discuss
Correct Answer: downcomer
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More in Biochemical Engineering:
Agitation and Aeration
Downstream Processing
Enzymes and Application
Enzymes and Kinetics
Fermentation Kinetics
Fermentation Reactors
Fluid Flow
Immobilized Enzyme
Sterilization
Water Treatment