Discussion
Home ‣ Biochemical Engineering ‣ Fermentation Reactors See What Others Are Saying!
- Question
In batch culture, protogon is produced from peptone during the stationary phase with a yield of 0.4 protogon mg per g of peptone. If it is to be produced in a chemostat at a dilution rate of 0.5 h-1 from a medium containing 10 g.l-1 of peptone, then the rate of protogon synthesis would be
Options- A. 0 g.l-1h-1
- B. 0.5 g.l-1h-1
- C. 1 g.l-1h-1
- D. 2 g.l-1h-1
- Correct Answer
- 0 g.l-1h-1
- 1. Sterilization can be carried out by
Options- A. heat
- B. radiation
- C. chemical agents
- D. all of these Discuss
- 2. Quasi steady state is also known as
Options- A. Michaelis Menten approach
- B. Briggs-Haldane approach
- C. Pseudo steady state
- D. all of the above Discuss
- 3. A Brookfield viscometer measures viscosity by determining
Options- A. the shear stress
- B. the shear rate
- C. the shear stress and shear rate
- D. the torque required to move an impeller at a set speed Discuss
- 4. From the following sanitizers which one comes under category of surface active agents?
Options- A. Tetra phosphate
- B. Teepol
- C. Meta phosphate
- D. None of these Discuss
- 5. Discoloration can be achieved by using
Options- A. sulphloydryl oxidase
- B. proteases
- C. anthocyanase
- D. all of these Discuss
- 6. An internal draft tube is preferrred to an external draft tube because
Options- A. it is easier to clean and sterilize a reactor
- B. it is cheaper to build a reactor with an internal draft tube
- C. Both (a) and (b)
- D. none of the above Discuss
- 7. The conformational change in an enzyme after the substrate is bound that allows the chemical reaction to proceed, can be explained by
Options- A. induced fit
- B. transition
- C. fit and fine
- D. Pasteur Discuss
- 8. The most commonly employed cross-linked polymer is the
Options- A. polyacrylamide gel
- B. collagen
- C. celluloses
- D. cation exchange resin Discuss
- 9. Fed batch reactors is used to produce vinegar because
Options- 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 Discuss
- 10. For glucose isomerization by immobilized enzyme, the reactor generally used is
Options- A. CSTR
- B. plug flow
- C. packed bed
- D. fluidized bed Discuss
More questions
Correct Answer: all of these
Correct Answer: Pseudo steady state
Correct Answer: the torque required to move an impeller at a set speed
Correct Answer: Teepol
Correct Answer: anthocyanase
Correct Answer: it is easier to clean and sterilize a reactor
Correct Answer: induced fit
Correct Answer: polyacrylamide gel
Correct Answer: it can maintain low ethanol concentrations
Correct Answer: packed bed
Comments
There are no comments.Programming
Copyright ©CuriousTab. All rights reserved.