Q:

What did Alexander Fleming discover?

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Quick Answer

Alexander Fleming discovered the antibiotic, penicillin. He found this important substance purely by accident when he observed penicillium mold in a petri dish preventing staphyloccoccus bacteria from growing around the mold.

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Full Answer

When he isolated penicillin, Fleming found that the substance killed bacteria but had no effect on animals. Fleming had trouble isolating and producing the substance because it was unstable. Other scientists, such as Ernst Chain and Howard Florey, were able to isolate penicillin and mass produce it for widespread use. The first antibiotic discovered, penicillin kills the dangerous bacteria that causes diseases such as diphtheria, meningitis and strep throat.

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Related Questions

  • Q:

    When was penicillin invented?

    A:

    Penicillin was discovered by Alexander Fleming in 1928. Fleming was a Scottish scientist interested in bacteriology and immunology. Somewhat by accident, he determined that antibiotic properties could be derived from the Penicillium fungi. In 1945, Fleming won the Nobel Prize for his discovery.

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  • Q:

    Who invented penicillin?

    A:

    Penicillin was discovered by Alexander Fleming in London, England in September, 1928. Fleming was a bacteriologist who worked at St. Mary's Hospital, and he found the Penicillium notatum mold on some Petri dishes containing Staphylococcus aureus upon his return from vacation.

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  • Q:

    Why is Fleming's Steakhouse so expensive?

    A:

    Fleming's Steakhouse is a high-end restaurant that uses high-quality steaks as well as premium entrées, which increase its menu prices. Steakhouses, in general, are more expensive than other restaurants because of the high price of beef, the premium service usually offered by such establishments and the preparation given to the food.

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  • Q:

    What is Fleming's right-hand rule?

    A:

    Fleming’s right-hand rule is a commonly used mnemonic in both physics and electrical engineering that shows the direction of the current generated in a conductor that is forcefully made to cut perpendicularly through a magnetic field. The force vector is perpendicular to the current and magnetic field vectors.

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