Question

How was antibiotic penicillin discovered?

Answer 1

1. In 1928, Alexander Fleming was studying Staphylococcus bacteria when he noticed that one bacterial culture had been contaminated by the fungus Penicillium notatum.
2. The bacterial colonies close to the fungus had been destroyed, while colonies farther away remained unaffected.
3. Fleming concluded that the fungus produced a substance that inhibited bacterial growth and named it penicillin.