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The cell (plasma) membrane is organised into a bilayer of phospholipids. This means that the hydrophilic (water-lover) polar heads of the phospholipids face out, and the hydrophobic (water-hating) non-polar tails face towards each other in the centre of the layer.

Interspersed within the phospholipids of the membrane are proteins (such as protein channels), cholesterol and carbohydrates.

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12y ago

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