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Chapter 12 Review

Chapter 12 Review - Chapter 12 Review The purpose of the...

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Chapter 12 Review The purpose of the cell membrane is to regulate the flow of different molecules in and out of the cell through different cell membrane proteins, and properties of the membrane itself (polarity, lipiphilic, tightly bound). Cell membrane is a sheet like structure 2 molecules thick Made of amphipathic lipids (hydrophobic and hydrophilic region), proteins, cholesterol Electrically charged (polarity) Fatty acids are long chains of hydrocarbons 14-24C in length COOH end (COO- is acid form ending in ate) Unsaturated 1 or more double bonds Lower melting points Usually cis Saturated Fats No double bonds Higher melting point, less fluidity 18:2 = nomenclature example 18 = # of carbons 2 = # of double bonds Draw the 3 components of a glycerol based phospholipids . . . . . . . Chemical structure of phosphatidate . .
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