Industrial

Question 1

Volumetric productivity

Answer 1

The amount of product produced per unit volume of production bioprocessor per unit time

Question 2

High vp means

Answer 2

Minimisation of the contribution of fixed costs to the cost of the product

Question 3

7 criteria of an ideal microbe

Answer 3

1) simple nutrional characteristics
2) optimum temp above 40 degrees
3) reaction of organism with equipment
4) stability and ability to be genetically manipulated
5) efficient product production
6) readily harvested from medium
7) toxicity

Question 4

5 storage methods

Answer 4

1) lyophilisation
2) dried cultures
3) glycerol suspensions
4) cryobeads
5) agar slope culture

Question 5

A constitutive mutant

Answer 5

A mutant organism that continuously produces a protein due to a mutation in the regulatory gene, which is always expressed or impossible to turn off

Question 6

Chemostat culture

Answer 6

Chemical environment is static. Fresh medium is continuously added while liquid culture is continuously removed to keep the culture volume constant

Question 7

Progressive control

Answer 7

Build up of one end product causes a partial switch off. Further switch off occurs if there is build up at the end of another branch and so on

Question 8

Concerted control

Answer 8

There is no switch off unless products at the end of several branches build up. Complete switch off then occurs

Question 9

Bacteria used for the production of Quorn

Answer 9

Fusarium venenatum

Question 10

Biotransformation

Answer 10

Use of microbial cells as catalysts to transform substrate

Question 11

A bioprocesser/fermenter

Answer 11

A vessel and ancillaries designed to facilitate the growth and/or activities of microorganisms under controlled conditions