NEET BIOLOGY

Detailed explanation-1: -Alexander Fleming was a Scottish physician-scientist who was recognised for discovering penicillin.

Detailed explanation-2: -Alexander Fleming’s Discovery After isolating the mold and identifying it as belonging to the Penicillium genus, Fleming obtained an extract from the mold, naming its active agent penicillin. He determined that penicillin had an antibacterial effect on staphylococci and other gram-positive pathogens.

Detailed explanation-3: -A more conventional account would credit the discovery of penicillin ("mould juice") to Sir Alexander Fleming and his untidy lab work. Interestingly enough, Pasteur’s passing and Fleming’s accidental discovery occurred on the same date-September 28th; two events separated by exactly 33 years.

Detailed explanation-4: -Scottish bacteriologist Alexander Fleming is best known for his discovery of penicillin in 1928, which started the antibiotic revolution. For his discovery of penicillin, he was awarded a share of the 1945 Nobel Prize for Physiology or Medicine.