Consider the following statements. I. Antibiotics are chemi…

Biology Microbes in Human Welfare Statement Based Questions Single Correct MCQ

Published on: August 13, 2026

Consider the following statements.

I. Antibiotics are chemical substances produced by some microorganisms which can kill or retard the growth of ther disease-causing microorganisms.

II. Penicillin was the first antibiotic discovered by Alexander Fleming (1928), while working on bacterium taphylococcus aureus.

III. The function of penicillin as an antibiotic was established by Ernst Chain and Howard Florey.

Which of the statements given above are correct?

I and II

I and III

II and III

I, II and III

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