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.
Endothelial cells under the microscope.
scanning electron micrograph showing an ovum (pink) released by the ovary at ovulation surrounded by
Smooth muscle under microscope
microscope slide
An electron is accelerated from rest through a potential difference of 3750 V. It enters a ...
Opener Transmission electron micrograph of conjugating Escherichia coli