Chaper Six Concepts and Terms

Chaper Six Concepts and Terms - BIO24075Fall2009

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BIO 240-75 Fall 2009 Vocabulary, Concepts and Terms for  Chapter 6 A  Tour of the Cell Cell-collection makes up organism, the cell is the simplest collection of matter that can  live.  Eukaryotic-"true kernal" most of the DNA is in nucleus bounded by a double membrane.  Prokaryotic- "before kernal" the DNA is concentrated in a region that is not membrane- enclosed called the nucleoid. Light microscopy-visible light is passed through the specimen and then through the glass  lenses. The lenses refract the light in such a way that the image of the specimen is  magnified as it is projected into the eye, on a film, screen, ect. Electron microscopy-focuses a beam of electrons through the specimen or onto its  surface. (TEM or SEM-refer to book) Figure 6.2 : Centimeter, cm (10-2 m)=0.4 inch Millimeter, mm (10-3 m) Micrometer, µm (10-6 m = 10-3 mm) Nanometer, nm (10-9 m = 10-3 µm) Cell fractionation-takes cells apart and separates the major organelles and other  subcellular structures from one another. Cytosol-the semifluid portion of the cytoplasm.
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This note was uploaded on 02/17/2010 for the course BIO 240 taught by Professor Hoffman during the Fall '06 term at University of Louisville.

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Chaper Six Concepts and Terms - BIO24075Fall2009

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