Multiple choice general knowledge science & technology Who inventented Pencillin Sir Almroth Wright Sir Alexander Fleming Sir Frederick Gowland Hopkins Professor Albert Neuberger Reveal answer Fill a bubble to check yourself B Correct answer Explanation Sir Alexander Fleming discovered penicillin in 1928 at St. Mary's Hospital in London when he noticed that mold (Penicillium notatum) had antibacterial properties against staphylococci.