Question 7 Centrifugation separates particles on the basis of which property?

a) Hydrophobicity

b) Size

c) Density X

d) Charge

Question 8 If a chromatography unit is used to capture a desired product whilst letting contaminants flow through, which mode is it operating in?

a) Size exclusion

b) Bind and elute X

c) Flow through

Question 9 What is the main idea and driver behind the use of biocatalysis?

a) Availability of different modes of operation

b)Cell growth and enzyme production are de-coupled from conversion

c)Ease of integration with biorefineries

Question 10 How many industrial biocatalytic processes are currently in operation?

a) None

b) Less than 10

c) 50

d) More than 150 X

Question 11 What is the significance of yield as a fermentation metric in the context of the competitiveness of a process?

a)Yield determines the maximum profit to be made

b) Yield determines the capital cost of process equipment

c) The process yield should be the same as the maximum theoretical yield

Question 12 In a biocatalytic process how is yield defined?

a) g product/L reactor volume/time

b)g product/g biocatalyst

c) g product /L reactor volume