CuriousTab
Search
CuriousTab
Home
Aptitude
Computer
C Programming
C# Programming
C++ Programming
Database
Java Programming
Networking
Engineering
Biochemical Engineering
Biochemistry
Biotechnology
Chemical Engineering
Civil Engineering
Computer Science
Digital Electronics
Electrical Engineering
Electronics
Electronics and Communication Engineering
Mechanical Engineering
Microbiology
Technical Drawing
GK
Current Affairs
General Knowledge
Reasoning
Data Interpretation
Logical Reasoning
Non Verbal Reasoning
Verbal Ability
Verbal Reasoning
Exams
AIEEE
Bank Exams
CAT
GATE
IIT JEE
TOEFL
Jobs
Analyst
Bank PO
Database Administrator
IT Trainer
Network Engineer
Project Manager
Software Architect
Discussion
Home
‣
Biochemical Engineering
‣
Fermentation Kinetics
Comments
Question
The function(s) of the draft tube in an airlift bioreactor is
Options
A. to reduce bubble coalescence
B. to improve circulation
C. to even out shear conditions throughout the reactor
D. all of the above
Correct Answer
all of the above
Fermentation Kinetics problems
Search Results
1. In an airlift bioreactor, the spent gases released from the liquid are called
Options
A. downcomer
B. disengagement zone
C. air riser
D. flotsam
Show Answer
Scratch Pad
Discuss
Correct Answer: disengagement zone
2. An open system in which the growth rate is maintained by the removal and addition of media at such a rate as to maintain a constant cell density is called a
Options
A. manostat
B. chemostat
C. turbidostat
D. culturostat
Show Answer
Scratch Pad
Discuss
Correct Answer: turbidostat
3. The phenomenon in which substrates are used in a sequential manner is known as
Options
A. trans-substrate genesis
B. dialism
C. diauxie
D. multiplicity
Show Answer
Scratch Pad
Discuss
Correct Answer: diauxie
4. The maximum specific growth rate (?
m
) of an organism in batch culture is equal to slope of a plot of
Options
A. In [biomass] against time for exponential phase data only
B. In [biomass] against time
C. biomass against time
D. biomass against time for stationary phase data only
Show Answer
Scratch Pad
Discuss
Correct Answer: In [biomass] against time for exponential phase data only
5. Diauxie is
Options
A. growth factors
B. microbiological die off
C. the simultaneous uptake of nutrients
D. the stagewise uptake of nutrients
Show Answer
Scratch Pad
Discuss
Correct Answer: the stagewise uptake of nutrients
6. Bubble column reactor has
Options
A. large height to diameter ratio
B. small height to diameter ratio
C. large diameter to height ratio
D. small diameter to height ratio
Show Answer
Scratch Pad
Discuss
Correct Answer: large height to diameter ratio
7. Fermentor should be filled with medium upto
Options
A. 65-70%
B. 70-75%
C. 75-80%
D. 80-85%
Show Answer
Scratch Pad
Discuss
Correct Answer: 75-80%
8. In the death phase
Options
A. nutrients available for the cells are depleted and begin to die
B. the number of viable cells will increase
C. nutrients available for cells are replenished and start to multiply
D. none of the above
Show Answer
Scratch Pad
Discuss
Correct Answer: nutrients available for the cells are depleted and begin to die
9. When intracellular enzymes of whole cells are to be used in a bio-conversion process, it is often necessary to____________the cells.
Options
A. permeabilize
B. lyophilize
C. heat-kill
D. denature
Show Answer
Scratch Pad
Discuss
Correct Answer: permeabilize
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
Scratch Pad
Discuss
Correct Answer: downcomer
Comments
There are no comments.
Enter a new Comment
Save
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