VIRTUAL ELECTRON MICROSCOPE Click Here to Begin to Use the Electron Microscope If you are viewing this message you must switch to “SLIDE SHOW” mode or.

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VIRTUAL ELECTRON MICROSCOPE Click Here to Begin to Use the Electron Microscope If you are viewing this message you must switch to “SLIDE SHOW” mode or use the “F5” key to switch to slide show mode

Tongue Bacteria Staphylococcus Avian Flu Virus Magnify Choose one of the specimens provided on the left to load into the electron microscope. Once viewing the specimen you can magnify the image by clicking on the yellow MAGNIFY button on the scope. END EXERCISE

Tongue Bacteria Staphylococcus Avian Flu Virus Bacteria on the surface of the tongue Magnify END EXERCISE 1) How many bacteria do you think are on the image? 2) Describe the different shapes of the bacteria that are visible.

Tongue Bacteria Staphylococcus Avian Flu Virus Magnify Methyllin resistant Staphylococcus aureus (purple) being ingested by macrophage (blue) END EXERCISE 3) Which cell is the largest between the macrophage and the bacteria? 4) Describe the shape of the bacteria.

Tongue Bacteria Staphylococcus Avian Flu Virus Magnify Avian Flu Virus END EXERCISE 5) Why do you think the virus has so many spikes on it? 6) Does the electron microscope allow a higher degree of magnification than the light microscope? Why?