Biotechnology

Which of the following microbes is used in making cheese

• Lactobacillus

• Lactococcus

• Probiotics

• Penicillium

Which of the following statements about biotechnology is incorrect?

• Biotechnology can be used in producing pharmaceuticals.

• Bioremediation involved use of microbes in the controlling pollution.

• Biotechnology is the use of whole living organisms in industrial processes.

• The term biotechnology was first coined in 1919.

What is the fungi Fusarium venenatum used to produce?

• Insulin production

• SCP production

• Bioremediation

• Beer production

Which of these is a disadvantage of using microbes in industrial processes.

• Microbes are able to work at ambient temperatures and pressures.

• Microbes can be genetically modified easily.

• Microbial biomass can have a high proportion of nucleic acids.

• There are less ethical considerations when using microbes rather than animals.

Which microbe is usually used to create wine?

• Penicillium

• Sachharomyces Venenatum

• Lactobacillus

• Saccharomyces Cerevisiae

Which of the following describes a primary metabolite?

• Primary metabolites are produced when the microbe is becoming stressed.

• Primary metabolites are commonly collected at the end of the staionary phase or in the decline phase of population growth.

• Primary metabolites are produced during normal activities of the microbe cell.

• Primary metabolites are collected using batch culture

In which phase of microbial growth does reproduction rate exceed the death rate.

• Lag phase

• Log phase

• Stationary phase

• Decline phase

Which part of the fermenter is responsible for ensuring that nutrients and bacteria are continually mixed thoroughly?

• A

• B

• I

• D

Which part of the fermenter can also be called the sparger

• B

• D

• E

• H

Which method of immobilising enzymes involves the enzyme forming ionic bonds with the support material

• Adsorption

• Entrapment

• Covalent bonding

• Membrane separation