Tissue Engineering Question Bank focuses on “Types of Bioreactors – 2”.
1. Which of the following are not photobioreactor types?
A. Tubular bioreactor
B. Christmas tree bioreactor
C. Foil bioreactor
D. Rotating wall vessel bioreactor
Answer: D
Clarification: Rotating wall vessel bioreactor is not a photo-bioreactor. The types of photo-bioreactors are Tubular, Christmas tree, plate, horizontal, foil, and porous substrate bioreactors.
2. Which of the following is not a perfusion bioreactor?
A. Parallel-Plate Bioreactors
B. Hollow-Fiber Bioreactors
C. Fixed bed bioreactors
D. Spinner Flasks
Answer: D
Clarification: Spinner flasks are not a type of perfusion bioreactors. The types of perfusion bioreactors are Fixed bed, fluized bed, hollow-fiber, and parallel plate bioreactors.
3. What type of perfusion bioreactor has been depicted in the following diagram?
A. Tubular bioreactor
B. Christmas tree bioreactor
C. Foil bioreactor
D. Fluized bed bioreactor
Answer: D
Clarification: Fluized bed bioreactor is comparable to bubble column bioreactor except the top position is expanded to reduce the velocity of the flu. The design of the fluized bioreactors (expanded to and narrow reaction column) is such that the sols are retained in the reactor while the liqu flows out. These bioreactors are suitable for use to carry out reactions involving flu suspended biocatalysts such as immobilized enzymes, immobilized cells, and microbial flocs.
4. What type of perfusion bioreactor has been depicted in the following diagram?
A. Parallel-Plate Bioreactors
B. Hollow-Fiber Bioreactors
C. Tower bioreactor
D. Spinner Flasks
Answer: C
Clarification: A pressure-cycle fermenter with large dimensions constitutes a tower bioreactor. A high hydrostatic strain produced at the base of the reactor escalates the solubility of oxygen (O2) as the medium. At the highest point of the riser, (with extended top) diminishes strain and as in the removal of carbon dioxe (CO2). The medium flows back in the down corner and completes the cycle.
5. What type of perfusion bioreactor has been depicted in the following diagram?
A. Tubular bioreactor
B. Christmas tree bioreactor
C. Airlift bioreactor
D. Rotating wall vessel bioreactor
Answer: C
Clarification: In the airlift bioreactors, the medium of the vessel is dived into two interconnected zones by means of a baffle or draft tube. In one of the two zones referred to as a riser, the air/gas is pumped. The other zone that receives no gas in the down corner.
6. What type of perfusion bioreactor has been depicted in the following diagram?
A. Parallel-Plate Bioreactors
B. Hollow-Fiber Bioreactors
C. Bubble Column bioreactors
D. Spinner Flasks
Answer: C
Clarification: In bubble column bioreactor, the air or gas is introduced at the base of the column through perforated pipes or plates, or metal micro porous spargers. The flow rate of the air/gas influences the performance factors – O2 transfer, mixing. The bubble column bioreactors may be fitted with perforated plates to improve performance. The vessel used for bubble column bioreactors is usually cylindrical with an aspect ratio of 4.6 (i.e., height to diameter ratio).
7. ________ facilitate rap dilution rates which make them resistant to both high pH and low pH volatile fatty ac wastes.
A. Continuous Stirred tank reactors
B. Christmas tree bioreactor
C. Foil bioreactor
D. Rotating wall vessel bioreactor
Answer: A
Clarification: The continuous stirred-tank reactor (CSTR), otherwise called the tank or back mix reactor, or a continuous stirred-tank reactor (CFSTR), is a typical model for a concoction reactor in a synthetic building. A CSTR regularly alludes to a model used to evaluate the key unit activity factors when utilizing a ceaseless fomented tank reactor to achieve a predetermined yield. The numerical model works for all liqus: flus, gases, and slurries.
8. What type of perfusion bioreactor has been depicted in the following diagram?
A. Continuous Stirred tank reactors
B. Christmas tree bioreactor
C. Packed bed bioreactor
D. Rotating wall vessel bioreactor
Answer: C
Clarification: A bed of sol particles, with biocatalysts on or within the matrix of sols, packed in a column constitutes a packed bed. The sols used may be porous or non-porous gels, and they may be compressible or rig in nature. Nutrient-broth streams consistently over the immobilized biocatalyst. The produce gained in the packed-bed bioreactor is discharged into the liqu and evacuated. While the progression of the liqu can be upward or descending, down-flow under gravity is favored.
9. ____________ bioreactor systems have length scales that are well matched to the physical dimensions of most cells and microorganisms.
A. Continuous Stirred tank
B. Microfluic
C. Packed bed
D. Rotating wall vessel
Answer: B
Clarification: Microfluic bioreactor frameworks have length scales that are all around coordinated to the physical elements of most cells and microorganisms. In perspective on this, microfluic bioreactors have appealing highlights which make them perfect to think about the conduct of cells and their interior association in their local microenvironment.
10. A ___________ landfill is a municipal sol waste landfill (MSWLF) in which liqus are added to help bacteria break down the waste.
A. bioreactor
B. open
C. packed bed
D. rotating wall vessel
Answer: A
Clarification: A bioreactor landfill is a municipal sol waste landfill (MSWLF) in which flus are added to enable microscopic organisms to separate the waste. The expansion in waste degradation and stabilization is practiced through the expansion of flu and air to upgrade microbial procedures. This bioreactor ea varies from the customary “dry tomb” municipal landfill approach.
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