Microscopy

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    Created by
    joyce🎧 ྀིྀི

    Cards (8)

    • Light microscopes use light and lenses to form an image of a specimen
    • Electron microscopes use electrons instead of light to form an image. They also have a much higher magnification and resolution
    • What does the high resolution of a microscope do?
      It gives a sharper image
    • Magnification = image size/actual size
    • Image size = magnification x actual size
    • Actual size = Image size/magnification
    • PRACTISE QUESTION:
      A cheek cell is viewed under a microscope with x40 magnification. The image of the cell is 2.4mm wide. Calculate the real width of the cheek cell. Give your answer in μm
      60μm
    • PRACTISE QUESTION:
      Why might you add stain to the sample on a microscope slide?
      To highlight objects within the sample to add colour to them and make them more visible