Microscopy

avatar
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