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Unformatted text preview: avoiding the water. The polar phosphate groups are oriented toward the water. Flexibility The fatty acid tails are flexible, causing the lipid bilayer to be fluid. This makes the cells flexible. At body temperature, membranes are a liquid with a consistency that is similar to cooking oil. Cholesterol In animals, cholesterol is a major membrane lipid. It may be equal in amount to phospholipids. It is similar to phospholipids in that it one end is hydrophilic , the other end is hydrophobic . Cholesterol makes the membrane less permeable to most biological molecules....
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This note was uploaded on 11/10/2011 for the course BIOLOGY bi 101 taught by Professor - during the Fall '10 term at Montgomery.
- Fall '10