A Level Biology Revision “Electron Microscopy”

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In this video, we look at electron microscopy. First we explore why electron microscopes have a higher resolution than light microscopes. We then explore how electron microscopes work before looking at their advantages and disadvantages. Finally, we compare the transmission electron microscope with the scanning electron microscope.

Image credits:

Electron Microscope
https://commons.wikimedia.org/wiki/File:Electron_Microscope.jpg
David J Morgan from Cambridge, UK, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0, via Wikimedia Commons

Pancreatic Acinar Cell
https://commons.wikimedia.org/wiki/File:Pancreatic_acinar_cells_-_TEM.jpg
Louisa Howard, Public domain, via Wikimedia Commons

Bronchiolar epithelium
https://commons.wikimedia.org/wiki/File:Bronchiolar_epithelium_2_-_SEM.jpg
Louisa Howard, Charles Daghlian, Public domain, via Wikimedia Commons

Light microscope
https://commons.wikimedia.org/wiki/File:Optical_microscope_nikon_alphaphot.jpg
GcG(jawp), Public domain, via Wikimedia Commons

Spirogyra
https://commons.wikimedia.org/wiki/File:Spirogyra_Under_Light_Microscope_40_X.jpg
Iceclanl, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons