Microscopes

• what is the formula for magnifaction?

  M = I/R
• Define resolution

  The ability to distinguish between 2 separate points that are close to each other
• What is magnification

  how many times larger the image is than the object
• What is the use of staining?


  Enhances visibility by providing contrast to identify organelles
• Disadvantages of electron microscope

  Expensive

  No colour

  Only dead specimens can be view
• What are the 2 types of electron microscopes?

  TEM - transmission electron microscopy

  SEM - scanning electron microscopy