Cell structures

• Eukaryotes - eg animals and plants
• Prokaryotes - eg bacteria
• Electron microscopes:

  • high magnification and resolution
  • not portable
  • expensive
• Eyepiece lens - looked through to see the image and also magnifies the image
• Objective lens - magnifies the image
• Stage - supports the slide
• Clip - holds the slide in place
• Handle - to carry the microscope with
• Lamp - shines through the slide so the image can be seen more easily
• Focusing knobs - move the stage up and down to bring the image into focus
• magnification = image size/real size