Compound Light Microscope

How does it work?

1. Uses Light and lenses2. Most common type in schools3. Can magnify up to 2000x the actual size

Pros and Cons• Observe living things• Observe cellular

processes like cytoplasmic streaming, cilia beating

• Limited magnification • Limit of resolution

What is the solution for the disadvantages?

Electron Microscope

• TEM– Greater magnification– High resolving power– Beam of electrons pass

through specimen

• SEM– Greater magnification– High resolving power– Beam of electrons hit &

bounce off specimen

What direct the direction of movement of electrons to create an image?

http://ts4.mm.bing.net/th?id=H.4527485114515931&pid=15.1

http://webpage.pace.edu/tgorrell/BwMicroscopy/threads.JPG