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Home ‣ Biochemical Engineering ‣ Fermentation Reactors See What Others Are Saying!
- Question
Immobilized cell reactors for wastewater treatment have the advantage of having/being
Options- A. higher cell concentration
- B. more stable and prevent washout
- C. higher dilution rate before the cells washout
- D. all of the above
- Correct Answer
- all of the above
- 1. Which of the following statement(s) regarding enzymes, is/are false?
Options- A. Enzymes are always proteins that function as catalysts
- B. Enzymes provide activation energy for reactions
- C. Enzyme activity can be regulated
- D. Enzymes may be used many times for a specific reaction Discuss
- 2. The Monod Model relates
Options- A. substrate utilized with the biomass consumption
- B. specific growth rate to the substrate availability
- C. yield with the biomass utilization
- D. the biomass concentration with specific growth rate Discuss
- 3. The advantage of axial flow impellers over radial flow impellers is that axial flow impellers
Options- A. provide better lift of solids
- B. provide high shear conditions
- C. provide low shear conditions
- D. are cheaper to build Discuss
- 4. Which is not the method for producing immobilized enzymes with multifunctional reagents?
Options- A. Enzymes are adsorbed on the surface active support followed by intermolecular cross linking
- B. Functional groups are introduced on the support to react co-valently with enzymes
- C. Enzymes are cross linked intermolecularly
- D. None of the above Discuss
- 5. Conventional tertiary treatment is
Options- A. chemical coagulation and flocculation
- B. filtration
- C. sedimentation
- D. none of these Discuss
- 6. The bitter taste of the high protein materials is reduced by using
Options- A. invertase
- B. dectinase
- C. protease
- D. none of these Discuss
- 7. The ultimate source of water is
Options- A. rivers and lakes
- B. dew and forest
- C. rain and snow
- D. underground and surface Discuss
- 8. Which of these enzymes contains a Zinc (Zn) ion?
Options- A. Carboxypeptidase A
- B. Phosphorylase B kinase
- C. Tyrosine hydroxylase
- D. Phosphodiesterase Discuss
- 9. The oxygen absorption rate can be determined by
Options- A. sodium sulfite oxidation method
- B. dynamic gassing out technique
- C. direct measurement
- D. all of these Discuss
- 10. Trichoderma ?-glucanase is reported
Options- A. to stabilize mashing
- B. to convert taste fractions of dextrins to fermentable sugars in beer
- C. to convert starch to dextrin
- D. all of the above Discuss
More questions
Correct Answer: Enzymes provide activation energy for reactions
Correct Answer: specific growth rate to the substrate availability
Correct Answer: provide better lift of solids
Correct Answer: None of the above
Correct Answer: chemical coagulation and flocculation
Correct Answer: protease
Correct Answer: rain and snow
Correct Answer: Carboxypeptidase A
Correct Answer: all of these
Correct Answer: to stabilize mashing
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