Industrially Useful Microbial Processes problems
- 1. Anaerobic bacteria undergoes butyric isopropyl fermentation in carbohydrates to yield
Options- A. glycol
- B. butyric acid
- C. acetic acid
- D. all of these Discuss
Correct Answer: all of these
- 2. The precursor used for production of vitamin B12 by Streptomyces olivaceus is
Options- A. cobalt chloride
- B. cobalt sulphate
- C. calcium chloride
- D. calcium sulphate Discuss
Correct Answer: cobalt chloride
- 3. In Corynebacterium glutamicum, tryptophan biosynthesis is regulated by the activity of
Options- A. DAHP synthetase
- B. Anthranilate synthase
- C. Both (a) and (b)
- D. Phosphoenol pyruvate Discuss
Correct Answer: Both (a) and (b)
- 4. The present day high yielding penicillin are obtained from
Options- A. Penicillium chrysogenum (NRRL, 1951)
- B. Penicillium chrysogenum (Q-176)
- C. Penicillium chrysogenum (Q-179)
- D. none of the above Discuss
Correct Answer: Penicillium chrysogenum (Q-176)
- 5. The organisum used for production of streptomycin is
Options- A. Streptomyces rimosus
- B. Streptomyces griseus
- C. Streptomyces aureofaciens
- D. Streptomyces erythreus Discuss
Correct Answer: Streptomyces griseus
- 6. "Vinegar mother" in Orleans process is
Options- A. inoculum of acetobacter bacteria used
- B. considerable slime and film growth of Acetobacter bacteria on the surface of the alcoholic broth
- C. cellulosic strands produced by Acetobacter bacteria to hold cells together
- D. none of the above Discuss
Correct Answer: considerable slime and film growth of Acetobacter bacteria on the surface of the alcoholic broth
- 7. Flavor can be enhanced from the
Options- A. L-Alanine
- B. D-L-Alanine
- C. L-Aspartic acid
- D. all of these Discuss
Correct Answer: all of these
- 8. Which of the following organisms have shown the ability of phosphate solubilization in red wine?
Options- A. S.cerevisiae
- B. Gluconobacter oxydans
- C. Bacillus subtilis
- D. None of these Discuss
Correct Answer: Gluconobacter oxydans
- 9. The organism commercially used for fungal fermentation to obtain citric acid is
Options- A. A. oryzae
- B. A.flavus
- C. A. niger
- D. S. cerevisiae Discuss
Correct Answer: A. niger
- 10. Which of the following are commercially used for bacterial amylases production?
Options- A. Bacillus subtilis
- B. Bacillus diastaticus
- C. Clostridium acetobutylicum
- D. Both (a) and (b) Discuss
Correct Answer: Both (a) and (b)
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