Which Microscope is Best Used for Observing the Surfaces of Intact

Question

Which microscope is best used for observing the surfaces of intact cells and viruses?
A)phase-contrast microscope
B)darkfield microscope
C)fluorescence microscope
D)brightfield microscope
E)scanning electron microscope

Accepted Answer

Scanning electron microscope is the best choice for observing the surfaces of intact cells and viruses as it provides high-resolution images of the surface features and can magnify up to 100,000 times. It works by scanning the surface of the specimen with a focused electron beam, which generates secondary electrons that are detected and used to construct an image.