Question

____ accidently discovered penicillin.

Answer 1

Penicillin:

1. Penicillin was the first antibiotic discovered by Alexander Fleming.
2. It was obtained accidentally while working with Staphylococcus.
3. He left the plate and saw fungal and bacteria growth after some days.
4. As the fungus(mould) invaded the plate, Staphylococcus couldn't grow.
5. He extracted the antibiotic substance from the developed mould in the petri dish and named it as penicillin.

Final answer: Alexander Fleming accidentally discovered penicillin.