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Cell Biology Practice Test: Techniques in Cell Biology - Transmission Electron Microscope
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Avg score: 69% Most missed: “TEM and SEM are the same microscopy techniques.”
A transmission electron microscope (TEM) is a microscope that uses a beam of electrons to create a highly magnified image of a specimen. The specimen is usually a thin section or suspension on a grid that is less than 100 nanometers thick.  TEMs can magnify objects up to 2 million times. Unlike optical microscopes, which use light in the visible spectrum, TEMs can magnify nanometer structures up to 50 million times. This allows TEMs to reveal details at the atomic scale.  TEMs are used to view thin specimens, such as tissue sections and molecules. They are also used to image the internal... Show more
Cell Biology Practice Test: Techniques in Cell Biology - Transmission Electron Microscope
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12 Questions

1. Shadow casting is a technique of visualizing ___________________
2. The resolution attainable with standard TEM is less than the theoretical value.
3. Which of the following component of TEM focuses the beam of electrons on the sample?
4. Glutaraldehyde is a ________________
5. Image formation in electron microscope is based on ___________________________
6. In TEM, the tissue is stained by floating on drops of ______________________
7. Osmium is a ___________________
8. The resolving power of TEM is derived from _______________
9. The cathode of transmission electron microscope consists of a ____________________
10. The biological materials have little intrinsic capability to ____________________
11. TEM and SEM are the same microscopy techniques.
12. During TEM, a vacuum is created inside the _________________________