Biotechnology - Antibiotics

Exercise :: Antibiotics - Section 1

  • Antibiotics - Section 1
6. 

At acidic pH, penicillin remains in

A. aqueous phase
B. solvent phase
C. both (a) and (b)
D. precipitates

Answer: Option B

Explanation:

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7. 

Chlorotetracyclin is soluble in

A. organic solvents
B. water
C. ether
D. all of these

Answer: Option B

Explanation:

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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

Answer: Option A

Explanation:

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9. 

Penicillin is recovered after fermentation as

A. potassium penicillin
B. calcium penicillin
C. sodium penicillin
D. penicillin only

Answer: Option A

Explanation:

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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

Answer: Option A

Explanation:

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