Phospholipids can interact both with water and with other lipids because they contain A. double bonds. B. polar regions and nonpolar regions. C. glycerol. D. saturated fatty acids. E. cholesterol.
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A common structural feature of membrane lipids is their amphipathic nature. For example, in phosphatidylcholine, the two fatty acid chains are hydrophobic and the phosphocholine head group is hydrophilic. For each of the following membrane lipids, name the components that serve as the hydrophobic and hydrophilic units: (a) phosphatidylethanolamine; (b) sphingomyelin; (c) galactosylcerebroside; (d) ganglioside; (e) cholesterol.
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