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Unformatted text preview: TA: Paul Shao [email protected] Sec A08, Wedn 6-7pm HSS1305 OH: Mon 11-12pm PCE Handout # 4 Membranes structure and Function 1. Fluid Mosaic Model (1972, Singer & Nicolson) a. The membrane is a ___________ structure with a mosaic of various _______ embedded in or attached to a ___________________. b. Membrane proteins are dispersed, inserted into bilayer with hydrophobic/hydrophilic (choose one) region within the membrane and hydrophobic/hydrophilic region protruding. c. The ability of phosophlipids to dorm a bilayer membrane is inherent in their molecular structure due to the _________________ nature of the molecule. d. Phospholipid contains a ____________ head made up of _____________, ____________, and _______________. e. Phospholipid contains a ____________ tail that’s composed of 2 fatty acid, which is simply a long chain of ___________. 2. Saturated vs. unsaturated fatty acid: a. At low temperature, unsaturated hydrocarbon tail is more _______ and remains fluid while saturated hydrocarbon tail is more _______ and solidifies. fluid while saturated hydrocarbon tail is more _______ and solidifies....
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- Winter '08
- Membranes, Membrane protein, Mon 11-12pm PCE