Multiple Choice
Draw a lecithin with palmitic acid at C1 and palmitoleic acid at C2.
23. Lipids
Glycerophospholipids
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Draw a cephalin with stearic acid at C1 and oleic acid at C2.
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Verified step by step guidance1
Identify the structure of cephalin, which is a type of phospholipid. It consists of a glycerol backbone, two fatty acid chains, and a phosphate group linked to an ethanolamine group.
Recognize that stearic acid is a saturated fatty acid with the chemical formula C18H36O2, and oleic acid is an unsaturated fatty acid with the chemical formula C18H34O2, containing one double bond.
Assign stearic acid to the C1 position of the glycerol backbone. This involves forming an ester bond between the hydroxyl group of the glycerol and the carboxyl group of stearic acid.
Assign oleic acid to the C2 position of the glycerol backbone. Similarly, form an ester bond between the hydroxyl group of the glycerol and the carboxyl group of oleic acid.
Ensure the phosphate group is attached to the C3 position of the glycerol backbone, and link it to the ethanolamine group, completing the cephalin structure.
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