Industrially Useful Microbial Processes problems
- 1. Which of the following species is used for vitamin B12 production by fermentation process?
Options- A. Streptomyces griseus
- B. Streptomyces olivaceus
- C. Bacillus megaterium
- D. All of these Discuss
Correct Answer: All of these
- 2. The medium required for glutamic acid mainly consist of
Options- A. glucose
- B. molasses
- C. sucrose
- D. lactose Discuss
Correct Answer: glucose
- 3. Which of the following is not a principal media for industrial alcohol production by fermentation?
Options- A. Black strap molasses
- B. Sulphite waste liquor
- C. Wood waste
- D. Glucose Discuss
Correct Answer: Glucose
- 4. Which of the following is true about ?-ionone, non-ionic detergent used in ? carotene fermentation medium?
Options- A. It is a precursor of ?-carotene fermentation process
- B. It is regarded as "steering" factor associated with bringing about the presence and activity of the enzymes responsible for ?-carotene formation
- C. It is an inducer of ? carotene fermentation process
- D. None of the above Discuss
Correct Answer: It is regarded as "steering" factor associated with bringing about the presence and activity of the enzymes responsible for ?-carotene formation
- 5. Commercial scale production of amino acids is typically carried out using
Options- A. regulatory mutants to cause overproduction of biochemical intermediates
- B. creation of an intentional increase in membrane permeability to increase release of the amino acids
- C. both (a) and (b)
- D. none of the above Discuss
Correct Answer: both (a) and (b)
- 6. The method used for obtaining citric acid as fermentation product are commonly known as
Options- A. submerged aerated fermentation
- B. stationary tray fermentation
- C. both (a) and (b)
- D. none of these Discuss
Correct Answer: both (a) and (b)
- 7. Who was the first scientist to observe the antibiotic and therapeutic properties of penicillin?
Options- A. Louis Pasteur
- B. Alexander Fleming
- C. S. C. Prescott
- D. E. P. Abraham Discuss
Correct Answer: Alexander Fleming
- 8. Amyloglucosidase is used in glucose production. It is produced by
Options- A. Rhizopus niveus
- B. Endomycopsis fibuliger
- C. Sclerotina libertina
- D. both (a) and (b) Discuss
Correct Answer: both (a) and (b)
- 9. Neomycin-B is obtained from
Options- A. Streptomyces niveus
- B. Streptomyces fradiae
- C. Streptomyces spheroides
- D. Streptomyces griseus Discuss
Correct Answer: Streptomyces fradiae
- 10. The man who first discovered the chemical that causes souring of milk was
Options- A. Pasteur
- B. Scheele
- C. Watson
- D. Ronald Ross Discuss
Correct Answer: Scheele
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