Compound Light Microscope
How does it work?
1. Uses Light and lenses
2. Most common type in schools
3. 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.45274851145
15931&pid=15.1
http://webpage.pace.edu/tgorrell/BwMicroscopy/threads.JPG