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Hi there.
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One of the major classes of organic compounds that we find in living organisms are lipids.
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And lipids have a variety of functions.
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These can be your waxes, your oils, your hormones even, such as steroids.
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So a function of lipids, well, one of them is going to be energy storage.
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You might have noticed i said the word fats.
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And fats are definitely used for energy storage.
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Okay, letter b talks about the cell membrane.
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If we think about the cell membrane, it is a phospholipid bilayer.
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So a cell membrane is a phospholipid bilayer...