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Test 2 Review - Biology 1408 Test 2 Review 1 Cells A basic...

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Biology 1408 Test # 2 Review 1. Cells : A basic unit of living matter separated from its enviorment by a plasma membrane; the fundamental structural unit of life. 2. Cell Theory : The theory that all living things are composed of cells and that all cells come from other cells. 3. Prokrayotic Cells : A type of cell lacking a membrane- enclosed nucleus and other membrane-enclosed organelles; found only in the domains Bacteria and Archaea. 4. Eukaryotic Cells : A type of cell that has a membrane- enclosed nucleus and other membrane-enclosed organelles. All organisms expect bacteria and archaea are composed of eukaryotic cells. 5. Plasma Membrane: The membrane that sets a cell off from its surroundings and acts as a selective barrier to the passage of ions and molecules into and out of the cell;
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consists of a phospholipids bilayer in which are embedded molecules of protein and cholesterol. 6. Cell Membrane : bi-layer consisting of phospholipids .
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