In order to visualize the fine structure of viruses and cytoskeletal filaments at 10-25 nanometers in diameter the type of microscopy that would be ideal is
A)standard light microscopy.
B)phase-contrast light microscopy.
C)transmission electron microscopy.
D)darkfield light microscopy.
E)differential-interference microscopy.

Question

Quizplus · Accepted Answer

Transmission electron microscopy is the best choice to visualize the fine structure of viruses and cytoskeletal filaments at 10-25 nanometers in diameter as it uses a beam of electrons to create an image and can achieve a resolution of up to 0.2 nm. This level of resolution is necessary to visualize these small structures. Standard, phase-contrast, darkfield, and differential-interference microscopy are all based on the use of visible light and have lower resolution limits, making them unsuitable for visualizing structures at this size scale.

In Order to Visualize the Fine Structure of Viruses and Cytoskeletal