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The basic subcellular structures of an eukaryotic cell as seen by transmission electron microscopy (TEM). Try to identify the cell borders and nuclei. Nuclear Envelope (purple) - composed of an inner and outer nuclear membrane. (green) - ribosomes appear as clusters of small, dark particles.
The TEM has revealed structures in cells that are not visible with the light microscope. SEMs are often used at lower magnifications (up to ×30,000). The limit of resolution of a SEM is lower...
Figure 01-01: Examples of the four different types of microscopy, imaging green algae cells (species unknown): brightfield light microscopy, fluorescence light microscopy, transmission electron microscopy (TEM), and scanning electron microscopy (SEM). An average algal cell is between 2 and 7 µm.
Three-dimensional views of the surfaces of cells and tissues are obtained by scanning electron microscopy. The shapes of isolated macromolecules that have been shadowed with a heavy metal or outlined by negative staining can also be readily determined by electron microscopy.
- Bruce Alberts, Alexander Johnson, Julian Lewis, Martin Raff, Keith Roberts, Peter Walter
- 2002
- 2002
The TEM has revealed structures in cells that are not visible with the light microscope. Image caption, A human lymphocyte white blood cell as seen with a transmission electron microscope
May 31, 2022 · Notice the lack of a cell wall. TEM electron micrograph of a plant cell showing key features. Notice the presence of a cell wall and vacuole. Mucus producing goblet cells (found in the lining of trachea, bronchi and larger bronchioles) are shown in a photomicrograph.
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Transmission electron microscope image of a human leukocyte (also known as a white blood cell), showing the Golgi apparatus, which is a structure involved in protein transport in the cytoplasm of the cell.
