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.
Scanning electron micrograph of a nematode within a plant leaf.
Electron micrograph of phage infection
Modern medicine
(a) Initial mtDNA results suggested modern humans and Neadertals were equally distantly related to D
Colored scanning electron micrograph (SEM) of a helper T cell (green) with HIV viruses (red) budding ...
Which of the following is the electron dot formula for an atom of strontium?