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6 Cards in this Set
- Front
- Back
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What substances make up the phospholipid bi layer |
Lipids Proteins Cholesterol Glycoproteins and glycolipids (___________ with polysaccharide attached) |
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Why is the phosphate head described as polar Benefits |
One side is slightly positive and the other is slightly negative Attracts other polar molecules and so therefore hydrophilic |
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Three ways fatty acid tails arrange themselves so no contact with water |
Mono layer Spherical micelles Bi layer |
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Why is bi layer favoured over micelles |
Two fatty acids are too bulky to fit in the interior of a micelle |
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What are the effects of unsaturated fatty acids |
Membrane becomes more fluid. This is because kinks in the hydrocarbon tails prevents them from packing closely together |
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Function of cholesterol |
Maintains fluidity of membrane |
