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Biotechnology - Antibiotics

Exercise : Antibiotics - Section 1
  • Antibiotics - Section 1
16.
Which of the following event occurs during second phase of growth of P. chrysogenum?
Synthesis of penicillin is high
Mycelial mass increases
pH increase
Both (a) and (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
Inoculum preparation for the fermentation medium for penicillin takes place on
wheat seeds
barley seeds
rice seeds
all of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
Antibiotics are typically produced in fed batch reactors because
antibiotic yields are generally higher when cells enter the stationary phase
the precursors are often toxic to the cells
antibiotic yields are generally higher when cell growth slows
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
Which of the following event occurs during third phase of growth of P chrysogenum?
Concentration of antibiotic increases in the medium
Autolysis of the medium starts
Slight rise in pH due to liberation of ammonia
All of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
Vegetable oil, (corn oil or soybean oil) added in the fermentation medium for penicillin, act as
source of nutrients
carbon source
antifoam agent
both (a) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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