ANTIBIOTICS QUIZ

solvent phase

aqueous phase

precipitates

both (a) and (b)

aerobic fermentation followed by anaerobic fermentation

aerobic fermentation

anaerobic fermentation

anaerobic fermentation followed by aerobic fermentation

All of these

Nocardia sulphurea

Steptomyces ramosus

Steptomyces aureofaciens

All of these

Growth of mycelia occurs

Ammonia is liberated in the medium

Lactic acid present in the corn steep liquor is utilized at the maximum rate

age of the inoculum

all of these

pH of the medium

composition of the medium

during the third phase

during the first phase

same in all the phases

during the second phase

sodium penicillin

potassium penicillin

calcium penicillin

penicillin only

S. ramosus

S. griseus

S. griseoflavus

S. aerofaciens

5-6

8-9

7-8

6-7

soybean meal, glucose, peptone, malt extract, ammonium sulphate

soybean meal, glucose, peptone, malt extract, calcium carbonate

soybean meal, glucose, peptone, malt extract, sodium chloride

soybean meal, glucose, peptone, malt extract, ammonium chloride