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WorksheetsPop Quiz Lecture Week 7
Total questions: 10
Worksheet time: 8mins
Which of the following is false about stirred tank fermenters?
The nutrients and microorganisms enter at one end of a cylindrical tube and the cells grow while they pass through the fermenter to prevent complete mixing.
Consumes a large amount of power and can damage a shear-sensitive cell system.
Can be used for aerobic or anaerobic fermentation.
The analysis of this type of fermenter should also include transport phenomena aside from cell kinetics and fermenter design only.
Besides water, light and a few nutrients, what do algae need in order to grow?
Carbon dioxide
methane
uranium
ozone
Bioreactors are defined as .......... used to provide a .................. to transfer nutrients and oxygen to cell cultures
containers & controlled environment
containers & minerals
pH, minerals, ionic force.
pH & controller enviroment
From the growth cycle graph, which is the stationary phase?
A
B
C
D
Which of the following is an upstream process.
Product recovery
Product purification
Media formulation
Cell lysis
This is used to promote aeration in bioreactor
Impeller
condenser
antifoam
sparger
Stirred-tank bioreactors have been designed for
(a) Addition of preservatives to the product
(b) Availability of oxygen throughout the process
(c) Ensuring anaerobic conditions in the culture vessel
(d) Purification of product
Which country won FIFA World Cup 2018?
Croatia
France
Belgium
England
