FATTY ACIDS Fatty Acids Fatty acids are a

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FATTY ACIDS

FATTY ACIDS

Fatty Acids Fatty acids are a building block molecule that serve one of two

Fatty Acids Fatty acids are a building block molecule that serve one of two purposes 1. Energy Storage (triglycerides) 2. Membrane (diglycerides or polar lipids) Polar lipids can contain phosphorus (phospholipids) or other stuff like sphingosine (sphingolipids)

Fatty Acids Be able to name a fatty acid Remember to count from the

Fatty Acids Be able to name a fatty acid Remember to count from the carboxylic acid as number one, then list the total # of carbons A fatty acid with no double bonds is called “saturated” Fatty acids with double bonds are unsaturated Every double bond receives a Δ designation, with the number of the first carbon that participates in the double bond

Naming fatty acids Δ 12 Δ 9 Number 1 Carbon 18: 2(Δ 9, Δ

Naming fatty acids Δ 12 Δ 9 Number 1 Carbon 18: 2(Δ 9, Δ 12)

Diacyl vs. Triacyl Diacylglcerols are membrane lipids and can act a surfactants. Infants need

Diacyl vs. Triacyl Diacylglcerols are membrane lipids and can act a surfactants. Infants need surfactant to breath, if they are born prematurely, then they don’t have surfactant and they have respiratory distress syndrome Triacylglycerols are dietary fats

Melting points The degree of saturation determines the melting point. The more unsaturated, the

Melting points The degree of saturation determines the melting point. The more unsaturated, the lower the melting point. Since triacylglycerols have three fatty acids, then the triacylglycerol with the most total unsaturations will have the lowest melting point range.

Cholesterol Cholesterol is in the lipid family because it is a large molecule of

Cholesterol Cholesterol is in the lipid family because it is a large molecule of most hydrocarbons It serves as the basis of many hormones and fat-soluble vitamins, as well as contributing to the viscosity of the cell membrane. The ring structure is the most defining characteristic of cholesterol

Fatty Acids Fatty Acids They are carboxylic acidsFatty Acids Fatty Acids They are carboxylic acids
Oxidation of fatty acids Activation of fatty acidsOxidation of fatty acids Activation of fatty acids
Biosynthesis of Fatty Acids LIPOGENESIS Fatty acids areBiosynthesis of Fatty Acids LIPOGENESIS Fatty acids are
TYPES OF FATTY ACIDS FATTY ACIDS Organic acidTYPES OF FATTY ACIDS FATTY ACIDS Organic acid
VOLATILE FATTY ACIDS Volatile Fatty Acids Major VFAVOLATILE FATTY ACIDS Volatile Fatty Acids Major VFA
Unsaturated Fatty Acids Fatty acids in vegetable oilsUnsaturated Fatty Acids Fatty acids in vegetable oils