EVERYDAY SCIENCE

Detailed explanation-1: -He named the ‘mould juice’ penicillin. Later, he would say: “When I woke up just after dawn on September 28, 1928, I certainly didn’t plan to revolutionize all medicine by discovering the world’s first antibiotic, or bacteria killer. But I suppose that was exactly what I did.”

Detailed explanation-2: -The accidental discovery of a mouldy petri-dish in 1928 kickstarted a 20-year long journey to develop the world’s first mass produced drug that could clear a bacterial infection; penicillin.

Detailed explanation-3: -ii) Penicillin was the first antibiotic to be discovered by Alexander Fleming (1928) while working on bacterium Staphylococcus aureus. iii) The full potential of penicillin as an effective antibiotic was established by Ernest Chain and Howard Florey. iv) Fleming, Chain, and Florey were awarded the Nobel Prize in 1945.

Detailed explanation-4: -We say something about the recipient, who or which is the subject of the sentence: Penicillin is an antibiotic that kills most bacteria. It was discovered by Alexander Fleming in 1928.

Detailed explanation-5: -Penicillin discovered Often described as a careless lab technician, Fleming returned from a two-week vacation to find that a mold had developed on an accidentally contaminated staphylococcus culture plate. Upon examination of the mold, he noticed that the culture prevented the growth of staphylococci.