Which fatty acids have more than one double bond?

Which fatty acids have more than one double bond?

• A. Monounsaturated
• B. Saturated
• C. Trans unsaturated
• D. Polyunsaturated fatty acids

Answer: (D)

Fatty acids with more than one double bond are polyunsaturated. The term poly means many, so two or more double bonds along the carbon chain define this category. This is different from saturated fats, which have no double bonds and are packed tightly, and monounsaturated fats, which have exactly one double bond and thus one kink. The geometry of the double bonds (cis vs trans) can vary, but the count of double bonds determines the classification. Polyunsaturated fats, such as those with two or more double bonds, are the best answer because they meet the criterion of having more than one double bond.

Fatty acids with more than one double bond are polyunsaturated. The term poly means many, so two or more double bonds along the carbon chain define this category. This is different from saturated fats, which have no double bonds and are packed tightly, and monounsaturated fats, which have exactly one double bond and thus one kink. The geometry of the double bonds (cis vs trans) can vary, but the count of double bonds determines the classification. Polyunsaturated fats, such as those with two or more double bonds, are the best answer because they meet the criterion of having more than one double bond.