Fermenters

Q. Which of the following is not a result of fermentation?

1. Acetic Acid
2. Citric Acid
3. Nitric Acid
4. Antibiotics

Q. Large scale production of biotechnological products involves use of __________

1. Electrophoresis
2. RFLP
3. Bioreactor / fermenter
4. PCR

Q. The first use of bioreactors was for mass production of Penicillin.

1. True
2. False

Q. How does stirring the broth in the bioreactor help?

1. Avoids contamination
2. Causes the cells to declump
3. Improves aeration among cells
4. Decreases frothing

Q. A bioreactor is

1. a fermentation tank
2. a culture containing radioactive isotopes
3. a culture for synthesis of new chemicals
4. a vessel that is used for distillation

Q. Bioreactors have a maximum capacity of _________

1. 1000 litres
2. 10 litres
3. 100 litres
4. 1 million litres

Q. Clumping of cells leads to lesser availability of nutrients and oxygen to the cells in the bioreactor.

1. True
2. False