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Home Biochemical Engineering 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
    • Discuss
    • 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
    • Discuss
    • 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
    • Discuss
    • 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
    • Discuss
    • 5. The fastest route of NADH reoxidation is

    • Options
    • A. aerobic respiration
    • B. anaerobic respiration
    • C. fermentation
    • D. decomposition
    • Discuss
    • 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
    • Discuss
    • 7. The number of baffles in a standard stirred tank bioreactor is

    • Options
    • A. 8
    • B. 6
    • C. 4
    • D. 2
    • Discuss
    • 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
    • Discuss
    • 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
    • Discuss
    • 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
    • Discuss


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