What is the reason that a modern electron microscope (TEM) can resolve biological images to the subnanometer level, as opposed to tens of nanometers achievable for the best super-resolution light microscope?
A) The focal length of the electron microscope is significantly longer.
B) Contrast is enhanced by staining with atoms of heavy metal.
C) Electron beams have much shorter wavelengths than visible light.
D) The electron microscope has a much greater ratio of image size to real size.
E) The electron microscope cannot image whole cells at one time.
Evolutionary relationships of the modern plant phyla.
An ant under an electron microscope
Scorpions, Spiders and Sharks: Electron-Microscope Images
Electron Microscope
Electron micrograph of plasmids isolated from E. coli
Color-enhanced electron micrograph of a DNA replication bubble and replication forks