A Best Way To Crack Gorenment Job Exams

Biotechnology Objective Questions { Antibiotics }



8. Penicillin is produced by
A.aerobic fermentation
B.anaerobic fermentation
C.aerobic fermentation followed by anaerobic fermentation
D.anaerobic fermentation followed by aerobic fermentation
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9. Penicillin is recovered after fermentation as
A.potassium penicillin
B.calcium penicillin
C.sodium penicillin
D.penicillin only
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10. Media composition for the production of streptomycin is
A.soybean meal, glucose, peptone, malt extract, sodium chloride
B.soybean meal, glucose, peptone, malt extract, ammonium chloride
C.soybean meal, glucose, peptone, malt extract, calcium carbonate
D.soybean meal, glucose, peptone, malt extract, ammonium sulphate
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11. Which of the following organism(s) produce(s) tetracycline?
A.Steptomyces aureofaciens
B.Steptomyces ramosus
C.Nocardia sulphurea
D.All of these
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12. Media used for the production of chlorotetracyclin consists of
A.sugar, corn steep liquor, CaCO3, (NH4)2SO4 and NH4 Cl
B.corn steep liquor, CaCO3 and (NH4)2SO4
C.sugar, CaCO3 and (NH4)2SO4
D.corn steep liquor, CaCO3, (NH4)2SO4 and NH4 Cl
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13. Which of the following precursor is added in the medium to get penicillin G?
A.Phenyl carbamic acid
B.Phenyl acetic acid
C.Ammonium sulphate
D.Ammonium chloride
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14. High yield of chlorotetracyclin requires
A.no aeration
B.continuous aeration
C.aeration which does not affect the yield
D.controlled aeration
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