1. Which of the following nitrogen source is used in the production of polyenes?
a) Peanut granules
b) Corn steep liquor
c) Pharmamedia
d) Soybean meal
Explanation: Soybean meal is useful for the production of polyenes. Polyenes are the long chains of unsaturated hydrocarbons. It consists of several carbon-carbon double bonds.
2. What is the basic principle of Industrial Microbiology?
a) To provide optimum growth conditions
b) To provide aseptic conditions
c) To produce a pure product
d) To create a pure form of media
Explanation: The basic principle of industrial microbiology is to provide optimum conditions like temperature, pH, pressure, etc. for the growth of microorganisms.
3. Crude media is an undefined media.
a) true
b) false
Explanation: Crude media is an undefined media as it contains the undefined composition of nutrients, minerals, proteins, growth factors, etc. It is mostly used for the production at a large-scale.
4. Which of the following is a raw material for the production of riboflavin?
a) Ammonium salt
b) Pharmamedia
c) Pancreatic digest of gelatin
d) Dried beef blood
Explanation: Pancreatic digest of gelatin is used as a raw material for the production of riboflavin. Riboflavin is a vitamin B2 which is required for the breakdown of biomolecules.
5. Which of the following is the best for gibberellins production?
a) Ammonium salt
b) Peptones
c) Distillers’ solubles
d) Corn-steep liquor
Explanation: Ammonium salt is used for the production of gibberellins. The gibberellins are the growth factors are produced by plants for the growth of the plant.
6. Which of the following is a raw material for butirosin production?
a) Ammonium salt
b) Pharmamedia
c) Pancreatic digest of gelatin
d) Dried beef blood
Explanation: The raw material for butirosin production is dried beef blood or haemoglobin. Butirosin is an antibiotic that is helpful in retarding the growth of both gram-positive and gram-negative bacteria.
7. Which of the following is the major and most important component of the medium?
a) Water
b) Carbon
c) Nitrogen
d) Minerals
Explanation: All the microorganisms require water for growth. It is the most important component useful for cleaning, rinsing, heating, and cooling. Water is required for the healthy metabolism of microorganisms.
8. The organism useful for fermentation process are ______
a) Bacteria
b) Virus
c) Protozoa
d) Algae
Explanation: Bacteria are the most useful microorganisms which help in the fermentation process. Bacteria is the large community of microorganism which has got a wide range of species
9. Which of the following mineral is not required for microorganism?
a) pb
b) K
c) S
d) mg
Explanation: The minerals required to microorganisms are Potassium, Sulphur, Calcium, Chlorine, Phosphorus, Magnesium, Iron, etc. Lead (Pb) is not required in media as it can be poisonous to microorganisms.
10. All microorganisms require minerals for growth and metabolism.
a) true
b) false
Explanation: All the microorganisms require minerals for proper growth and metabolism of the body. Minerals are the essential components added in the fermentation medium.