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Choose one correct answer Penicillin is a secondary metabolite of Penicillium chrysogenum. This means that A....

Choose one correct answer

Penicillin is a secondary metabolite of Penicillium chrysogenum. This means that

A. Penicillin is only produced after cell death.

B. The majority of penicillin is produced during the stationary phase

C. Penicillin is produced in the exponential and stationary phases equally.

D. The majority of penicillin is produced during the exponential phase

E. Penicillin is only produced when a second microorganism is present

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Answer #1

And.B.The majority of penicillin is produced during the stationary phase.

The metabolites which are required for growth and maintenance of cellular functions are called primary metabolites.

The metabolites that are not required for growth and maintenance of cellular functions and are the end products of primary metabolism, are called secondary metabolites.

secondary metabolites like pencillin, other antibiotics, alkaloids, steroids, toxins etc. Are produced during stationary phase.

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