Which advance in microscopy directly led to the discovery of organelles?

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  • 1 month ago

    None. Even van Leeuwenhoek's single lens magnifiers were quite capable of resolving organelles.  See the drawings he made of some of the larger ciliate protozoans.  He drew cilia, the oral groove, and what are probably food vacuoles.

    Your teacher probably wants "staining."  Using this, van Leeuwenhoek was able to distinguish, and draw, more features, such as the nucleus and the contractile vacuole of a paramecium.

  • 1 month ago

    The development of the electron microscope and the ultramicrotome.

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