BB lecture 9-28 cell structure

BB lecture 9-28 cell structure - Chapter 6: Organization of...

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Chapter 6: Organization of Cells (pp. 94-103) Learning objectives Know the advantages of TEM, SEM, and light microscopes in studying cells Distinguish between magnification and resolving power. Know how cell components can be separated into specific fractions. Learn defining characteristics of the domains: Bacteria, Archaea , & Eukaryote Explain why a cell is limited in size by surface area/volume ratios. Compare prokaryote and eukaryote cell size and structure Compare animal and plant cells, and know features unique to each Be able to draw the structure of the nucleus nucleus , and discuss a possible explanation for its double membrane .
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The first microscope by van Leeuwenhoek (1632-1723) Modern light microscope (LM) (aka compound microscope) Electron microscope (EM)
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Light microscope (LM) applications Figure 6.3 Figure 6.4 Alive Stained for contrast Note SEM is used for surface detail image appears as 3-D Note TEM is used for internal detail (aka ultrastructure) & image is not in 3-D
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Magnification and Resolution By using more lenses microscopes can magnify by a larger amount, but this doesn't always mean that more detail can be seen. The amount of detail depends on
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This note was uploaded on 10/06/2010 for the course BIO 311C taught by Professor Satasivian during the Fall '08 term at University of Texas at Austin.

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BB lecture 9-28 cell structure - Chapter 6: Organization of...

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