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3 Cards in this Set
- Front
- Back
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Describe the 3 functions of the membrane at the surface of the cell. |
>Separating cell contents from the outside environment >Controls which substances enter and leave the cell >Cell recognition and signalling |
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Describe the 3 functions of the membrane within the cell |
>Divide cell into compartments making different functions more efficient >Can form vesicles >Control which substances enter and leave the organelle. |
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Describe the 'fluid mosaic' structure. |
>Phospholipid molecules form a continuous fluid bilayer >Various protein molecules are scattered through the bilayer some can move around >Glycoproteins (protein molecules have a carbohydrate part attached) >Glycolipids (phospholipid molecules have a carbohydrate part attached) >Cholesterol |
