Chapter 12 Biochem

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4 Terms

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Basic Components of Phospholipids

Glycerol backbone (3-carbon molecule) or sphinogosine backbone (for sphingolipids), two fatty acid tails(hydrophobic), and a phosphate group attached to the glycerol or sphingosine (hydrophilic).

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Basic Components of Glycolipids

similar to phospholipids but have a sugar group instead of a phosphate. Important for cell recognition and signaling.

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Basic Component of Cholesterol

Four fused rings (steroid structure)
small polar head (hydroxyl group) and nonpolar hydrocarbon tail

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Functions of Lipids

energy storage (triglycerides), membrane structure (phospholipids, glycolipids), signaling (steroid hormones, and lipid messengers)