AP BIOLOGY

Detailed explanation-1: -These fatty acids are subdivided into two groups depending on the number of double bonds. A single double bond is termed monounsaturated, and those with more than one double bond are termed polyunsaturated. The IUPAC name for an 18-carbon fatty acid with a double bond at position 9 is called octadec-9-enoic acid.

Detailed explanation-2: -Poly-unsaturated fats have multiple double bonds, are even more “bent”, and have even lower melting points.

Detailed explanation-3: -Since linoleic acid has more than one double bond (it has two), it is a polyunsaturated fatty acid.

Detailed explanation-4: -If there is more than one double bond, then it is known as a polyunsaturated fat; e.g. canola oil. Unsaturated fats help to lower blood cholesterol levels whereas saturated fats contribute to plaque formation in the arteries. Unsaturated fats or oils are usually of plant origin and contain cis unsaturated fatty acids.

Detailed explanation-5: -Polyunsaturated fats include omega-3 and omega-6 fats. These are essential fatty acids that the body needs for brain function and cell growth. Our bodies do not make essential fatty acids, so you must get them from food. Omega-3 fatty acids are good for your heart in several ways.