5. Regarding electron microscopy, which of the following description is correct?Group of answer choiceselectron microscopy uses a laser for illuminationtransmission electron microscopy (TEM) can be performed on live cellsscanning electron microscopy (SEM) can reveal ultrastructures within a cellelectron microscopy allows visualization of bacteriophages
Question
- Regarding electron microscopy, which of the following description is correct?Group of answer choiceselectron microscopy uses a laser for illuminationtransmission electron microscopy (TEM) can be performed on live cellsscanning electron microscopy (SEM) can reveal ultrastructures within a cellelectron microscopy allows visualization of bacteriophages
Solution
The correct description regarding electron microscopy is "electron microscopy allows visualization of bacteriophages".
Here's why:
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Electron microscopy does not use a laser for illumination. Instead, it uses a beam of electrons to create an image of the specimen.
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Transmission electron microscopy (TEM) cannot be performed on live cells. The preparation process for TEM involves fixing, dehydrating, and embedding the specimen in a resin, which is not compatible with live cells.
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Scanning electron microscopy (SEM) does not reveal ultrastructures within a cell. SEM provides detailed images of the surface of a specimen, but it does not provide information about internal structures.
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Electron microscopy does allow visualization of bacteriophages. Bacteriophages are viruses that infect bacteria, and they are small enough to be visualized with an electron microscope.
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