They use electromagnets to focus a beam of electrons
- These electron microscopes use electromagnets to focus a beam of electrons
- Then it is transmitted through the specimen.
They Show The Density of a Specimen
- The darker the image, the more dense the specimen is - this is due to the higher absorption of electrons!
- TEMs produce high resolution images, meaning that you can see the internal structures of organelles.
- However, these specimens must be viewed in a vacuum, meaning that you cannot view live specimens.