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Biochemical Engineering - Downstream Processing

Exercise

  • Section 1
"Everything should be made as simple as possible, but not simpler."
- Albert Einstein
1. 

Concentration polarization can be reduced further by
A. pre filtering the solution
B. reducing the flow rate per unit membrane surface area
C. back washing periodically
D. all of the above
2. 

A system which require less solvent and produces a more concentrated extract phase, is desired with a
A. large distribution coefficients
B. small distribution coefficients
C. very small distribution coefficients
D. constant distribution coefficients
3. 

The efficiency of cell disruption in a bead mill depends on the
A. concentration of the cells
B. amount and size of beads
C. type and rotational speed of agitation
D. all of these
4. 

A common filter medium is the cloth filter generally made of
A. canvas
B. synthetic fabrics
C. metal or glass fiber
D. all of these
5. 

An ion exchange resin is composed of
A. polymeric network
B. ionic functional groups
C. counter ions
D. all of these

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