• Question: what is antibiotics and who invented it

    Asked by jackthorne to Probash on 24 Mar 2011 in Categories: .
    • Photo: Probash Chowdhury

      Probash Chowdhury answered on 24 Mar 2011:

      Anitbiotics are a type of medicine that kills bacteria (but not viruses). Alexander Fleming discovered the first antibiotic – penicillin. He noticed the blue mould growing on his bread so he decided to take some and see if he could grow some in a petri dish. He did, but also noticed something else. the petri dishes were exposed to the air so all the germs (bacteria) in the air could land and grow on the petri dish too, but near the penicillin mould there was no bacterial growth.

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