Multiple choice

The drugs penicillin was first purified by:

  1. Dr. Alexander Flemming

  2. Dr. H.W. Florey

  3. Dr. Waksman

  4. Dr. Duggar
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Alexander Fleming discovered penicillin in 1928, but the first successful purification and isolation of pure penicillin was achieved by Howard Florey and Ernst Chain in the late 1930s. Fleming's original penicillin was unstable and difficult to purify. Florey and Chain's work made penicillin usable as a drug.

Keep practicing — related questions