Transmission Electron Microscope (TEM):

A transmission Electron Microscope (TEM) is used to study the details of the internal cell structure. The TEM can magnify objects about 250,000 times. In this microscopy, the specimen is cut into extremely thin sections. When the Electron beam is directed through the chamber, the electrons hit the specimen and are transmitted. The lenses focus the transmitted electron beam onto a screen or photographic film for viewing.