Unsaturated fatty acids are often classified according to the number of carbon a

Question

Unsaturated fatty acids are often classified according to the number of carbon atoms between the termini MaPdQt methyl carbon (the omega carbon) and the closest double bond to the methyl end of the chain. An omega-6 fatty add, for example, would have a double bond in position 6 counting from the methyl end of the molecule. Classify the following fatty acids according to their omega class by dragging the name into the appropriate bin. This classification is important because it emphasizes the biosynthetic relationships between various polyunsaturated fatty adds. Which of the fatty acid dasses cannot be made by mammals, and are therefore considered dietary essential fatty acids? (Check all that apply).

Explanation / Answer

omega-3 fatty acids : alpha-linolenic acid, eicosapentaenoic acid (EPA)

omega-6 fatty acids : arachidonic acid, gamma--linolenic acid, linoleic acid

omega-7 fatty acids : palmitoleic acid

omega-9 fatty acids : oleic acid

Essential fatty acids: omega-3 and omega-6

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