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The Cell: An Overview Chapter 5
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Cell Theory: Fundamental to Life All organisms are cellular Cell: the smallest unit of life Cells come only from preexisting cells
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Examples of Cells Fig. 5-2, p. 92
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Animation: Overview of cells
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Fig. 5-4a, p. 94 Bright field microscopy
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Fig. 5-4b, p. 94 Dark field microscopy
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Plasma Membrane Fig. 5-6, p. 95
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Animation: Cell membranes
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Plasma Membrane Plasma membrane defines cytoplasm Lipid bilayer and proteins Hydrophobic Selective passage hydrophilic Internal environment of cell different from external
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Typical Plant Cell Fig. 5-9a, p. 100
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Electron Micrograph Plant Cell Fig. 5-9b, p. 100
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Microbodies Fig. 5-17, p. 107
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Fig. 5-17, p. 107 (removable labels) Cytosol Large central vacuole Chloroplast
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Cytoskeleton Cytoskeleton Maintains shape and organization Interconnected protein fibers and tubes Most prominent in animal cells Plants and fungi also use cell walls and central vacuole
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Cytoskeleton Examples Fig. 5-18, p. 107
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Cell Wall Structure Fig. 5-25, p. 112
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Extracellular Matrix Fig. 5-27, p. 115
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Video: Fluid mosaic model
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