Mircoscopes
- Created by: Bea Johnston
- Created on: 28-11-12 12:48
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- Microscopes
- Light Mircoscopes
- Use glass microscopes to refract light rays to create an actual image
- Specimins need to be stained so they are easier to see
- Different cell parts absorb more stain than others so we can distinguish them
- Greatest Resolution: 200 nm
- Greatst Magnification: x1400
- Transmission Electron Microscope (TEM)
- Guides electrons to go through a thin specimin
- Greatest magnification: x300,000
- Greatest Resolution: 0.5 nm
- Untitled
- Scanning Electron Microscope (SEM)
- Bounces electrons off a specimin surface coated with large ions
- Greatest magnification: x300,000
- Greatest Resolution: >0.5 nm
- Magnification
- The number of times greater an image is than the actual object
- Size of image/ actual size of object
- Resolution:
- The ability to distinguish between two objects very close together; the hihger the resolution, the greater detail can be seen
- Light Mircoscopes
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