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Transmission Electron Microscope

OCR AS-level BiologyComponents of Living SystemsLesson 11 of 21

The transmission electron microscope passes a beam of electrons through a thin specimen and focuses the electrons that have passed through the specimen onto a screen to form a two-dimensional image. It has a resolution of 0.5nm.
The specimen is prepared by

Diagram

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Key terms in this lesson

resolution
The ability to distinguish two objects that are close together as separate entities, which determines how much detail can be seen.

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