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Unformatted text preview: 9-10-09Biology Textbook Chapter 7: Cell Structure and Function - Inside the CellKey Concepts-The cell component structure is closely related to their function.-“Zip codes” within cells, transports materials-Cells are dynamic: molecules constantly enter and exit across the plasma membrane; products are shipped along protein fibers; and elements of the cell’s internal skeleton grow and shrink. •Plasma Membrane: creates an internal environment that differs from conditions outside the cell (thanks to the selective permeability of phospholipids bilayers and the activity of membrane transport proteins.•Morphology:“form-science”; species fall into the two categories: prokaryotes and eukaryotes.•Phylogeny:“tribe-source/evolutionary history”; organisms fall into the three groups of Bacteria, Archaea, and Eukarya. -Members of the Bacteria and Archaea are prokaryotic; members of the Eukarya (algae, fungi, plants, and animals) are eukaryotic. •Prokaryotic Cell: the absence of a membrane-bound nucleus; they all contain a...
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This note was uploaded on 01/22/2011 for the course BIO 100 taught by Professor Sokolove during the Fall '08 term at UMBC.
- Fall '08