Microscopy practical

• Microscope parts


  • Eyepiece lens
  • Objective lens
  • Stage
  • Light source
  • Focusing wheel
• Drawing what you see under a microscope

  1. Clear line drawing- no shading

  2. Label main cell structures

  3. Add a title and the magnification
• You start on the lowest objective lens to make it easier to focus and give a bigger field of view
• Starch granules can be seen under a microscope as small spheres with concentric rings inside them.
• 1. Place specimen onto slide
  2. Add stain
  3. Add cover slip
  4. Soak up any excess liquid with a paper towel
  5. Switch on the light source and place your slide on the stage
  6. Use the lowest objective lens and turn the focusing wheel to move the lens close to the slide
  7. Slowly adjust the focusing wheel until you can see a clear image
  8. Increase the magnification by changing the objective lens and re-focus