Role of Shear in Stirred Fermenters MCQ

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• What is the function of microcarrier beads?
  ক

  To give the cells the shape of beads

  খ

  It provides non-buoyancy condition

  গ

  It helps in the lysis of cells

  ঘ

  It provides protection and surface area
• Referring to Q6 and Q7 and, calculate the stirrer power.
  ক

  1.13×10-2 W

  খ

  1.10×10-2 W

  গ

  1.20×10-2 W

  ঘ

  1.23×10-2 W
• What is the function of Pluronic f-68?
  ক

  To increase the foaming

  খ

  To decrease the foaming

  গ

  Increase cell attachment

  ঘ

  To change the composition of the cells
• “Instrument air compressor” should be used generally as a compressor?
  ক

  True

  খ

  False
• Larger foam is produced in bioreactors with increased headspace and small workspace?
  ক

  True

  খ

  False
• Viscosity is inversely proportional to the size of eddies?
  ক

  True

  খ

  False
• Which type of forces stretch and distort the bubbles?
  ক

  Shear forces

  খ

  Strain forces

  গ

  Surface tension

  ঘ

  Frictional forces