ch.3-slides

ch.3-slides - Ch. 3 Cells, Organization, and Communication...

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Ch. 3 Cells, Organization, and Communication I. Structure and Function of Cells II. Enzymes and Biochemical Reactions III. Cellular Metabolism IV. Cell Membrane V. Membrane Transports and Osmosis
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I. Structure and Function of Cells ll li ing things are composed of cells All living things are composed of cells. • All cells arise from pre-existing cells through cell ivision. division. • Cells contain hereditary material, which they pass to another cell during cell division • The chemical composition of all cells is quite similar. • The metabolic processes associated with life occur within cells.
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Cellular blueprints housed in the nucleus Prokaryote (bacteria) a single-cell lacking the nucleus. Eukaryote composed of cells with nuclei. Nucleus contains genetic material in DNA
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Endoplasmic reticulum synthesizes proteins or lipids • Rough endoplasmic reticulum studded with ribosomes (RER) – Protein manufacture • Smooth endoplasmic reticulum has no ribosomes (SER) ipid synthesis – Lipid synthesis
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• Golgi complex packages and processes proteins – Also produces lysosomes (digestive enzyme sac)
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This note was uploaded on 07/25/2010 for the course BISC 104LXG at USC.

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ch.3-slides - Ch. 3 Cells, Organization, and Communication...

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