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There isn't exactly something known as a non-polar lipid.

A lipid consists of a polar phosphate 'head' and a non-polar hydrocarbon 'tail'.

When something is 'polar', it means that that the charges between a compound aren't shared equally. For example, in water (H2O), H has a slightly positive charge while O has a slightly negative charge.

Since the 'head' of the lipid is polar, it attracts H2O molecules and so it is hydrophilic. On the other hand, the 'tail' of the lipid is non-polar, hence it is hydrophobic.

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13y ago

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