Fermentors and Fermentor Operation Barriers Quiz
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Questions and Answers

What tends to happen to cells in filamentous cells like actinomycetes and fungi?

  • They form a gradient concentration of the product from the inside to the outside.
  • They tend to aggregate and only those at the periphery of the clump grow. (correct)
  • They avoid clumping by growing in the center of the clump.
  • They tend to grow uniformly throughout the clump.

    • How is the avoidance of clumps and the production of loosely organized cells achieved in the airlift fermentor?

  • By circulating the broth in an external membrane in contact with water. (correct)
  • By maintaining a high concentration of components in the fermentation broth.
  • By subjecting the broth to dialysis.
  • By applying reduced pressure to remove volatile end products.

    • Why is feedback inhibition a concern in high concentrations of fermentation broth components?

  • It accelerates fermentation.
  • It enhances production.
  • It limits production easily. (correct)
  • It promotes cell growth.

    • What is one way to deal with feedback inhibition in a fermentation broth?

    <p>Subjecting the broth to dialysis.</p> Signup and view all the answers

    What processes are involved in scaling up operations in a fermentation industry?

    <p>Progressing from small conical flasks to large-scale fermentors.</p> Signup and view all the answers

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