Microscopes

• Contrast optical microscope and TEM

  • TEM uses electrons while optical uses light
  • TEM allows a greater resolution so greater detail in organelles can be observed
  • TEM view only dead speciment and optical can view live specimen
  • TEM does not show colour and optical does
  • TEM requires thinner specimen
  • TEM requires a more time consuming preparation
  • TEM focuses using magnets and optical uses glass lenses
• Define resolution

  How well can a microscope distinguish between 2 points that are close together