BIO311C_F10_Chapter 6 part 1

BIO311C_F10_Chapter 6 part 1 - Cell structures part 1...

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Unformatted text preview: Cell structures part 1 Chapter 6 Relevant parts Endosymbiotic theory The Scale of Life http://learn.genetics.utah.edu/content/begin/cells/scale/ Units of measurement Microscopes Light Microscopes Magnification approx 1000 x Resolution 200 nm Electron Microscopes Magnification approx 250, 000 x Resolution 2 nm Microscopes Magnification Ratio of an objects image to its real size Resolution Measure of clarity of image Contrast Visible differences in part of the sample Dark objects visible against a bright background. Brightfield Illumination Figure 3.4a, b Light objects are visible against a dark background Darkfield Illumination Figure 3.4a, b Uses fluorochromes and a laser light. The laser illuminates each plane in a specimen to produce a 3-D image. Confocal Microscopy Figure 3.7 Accentuates diffraction of the light that passes through a specimen. Phase-Contrast Microscopy Figure 3.4c Accentuates diffraction of the light that passes through a specimen; uses two beams of light....
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This note was uploaded on 12/04/2010 for the course BIO 311 C taught by Professor Mcclelland during the Fall '09 term at University of Texas at Austin.

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BIO311C_F10_Chapter 6 part 1 - Cell structures part 1...

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