NUR 3125 Study Guide - Midterm Guide: Epithelium, Hydrostatics, Lipid Bilayer

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19 Feb 2017
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Cellular biology and adaptation study guide: identify the eight specialized functions of a cell. Movement, conductivity, metabolic absorption, secretion, excretion, respiration, reproduction, and communication: discuss how the structural composition of the plasma membrane affects the function of the plasma membrane. The plasma membrane encloses the cell and, by controlling the movement of substances across it, exerts a powerful influence on metabolic pathways. The basic structure of cell membrane is the lipid bilayer, composed of 2 opposing layers of lipids. Bilayers are usually composed of amphiphilic phospholipids that have a hydrophilic phosphate head and a hydrophobic tail consisting of two fatty acid chains: describe the importance of the nucleus, nucleolus and the mitochondria. The nucleus is the largest membrane-bound organelle, usually found in the cell"s center, and the chief functions are cell division and control of genetic information. The nucleolus is contained within the nucleus, is made mostly of rna, and does most of the processing of rna.