Question

Assertion (A): While working on Staphylococci, Alexander Fleming observed that Penicillium notatum inhibits the growth of bacteria.

Reason (R): The inhibiting chemical was commercially extracted and its full potential was established by Alexander Fleming.

पर्याय

• Both (A) and (R) are true and (R) is the correct explanation of (A).

• Both (A) and (R) are true, but (R) is not the correct explanation of (A).

• (A) is true, but (R) is false.

• (A) is false, but (R) is true.

Answer 1

(A) is true, but (R) is false.

Explanation:

Penicillin was discovered by Fleming when he found that Penicillium notatum suppressed bacterial growth. However, it was not Fleming who carried out the large-scale manufacture and commercial extraction of penicillin, but rather Howard Florey and Ernst Boris Chain.