KINDS OF MICROSCOPE

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9 Terms

1
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LIGHT MICROSCOPE

most common

  • different absorption of light that is bettered by staining

  • light passes and that is what we see

2
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PHASE CONTRAST MICROSCOPE

  • optical device that can show minute distances (details)

3
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INTERFERANCE MICROSCOPE

  • two beams of light and can measure distance of tissues

4
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FLUORESCENT MICROSCOPE

  • uses uv (different wavelengths) and give you different colors

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TRANSMISSION ELECTRON MICROSCOPE

  • does NOT use light, uses beam of electrons that are bombarded on the slide

    • cannot see with the naked eye ( can hurt your eyes)

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SCANNING ELECTRON MICROSCOPE

  • can use tv monitor to move to screen for specimen separation

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specimen prep for electron microscopy

  • must be dehydrated (NO WATER)

  • Fixative

    • chemical (osmium tetroxide)

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with both electrons microscope you will

be given a picture with no color (color later added)

9
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atomic force microscopy

  • most powerful

  • can literally feel the surface of cell with tool (fingertip probe)

  • probe passes surface