20032004 Lipids 20032004 Large biomolecules that are made mostly of carbon and hydrogen with a small amount of oxygen sometimes Phosphorous Lipids Monomer subunits Glycerol and 3 fatty acids ID: 319774
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Lipids: Fats & Oils
2003-2004Slide2
Lipids
2003-2004
Large biomolecules that are made mostly of carbon and hydrogen with a small amount of oxygen (sometimes Phosphorous).Slide3
Lipids
Monomer subunits Glycerol and 3 fatty acidsExamplesfatsoilsWaxes
2003-2004Slide4
Lipids
Function:Stores energyvery concentrated (pure)2 times as much as carbohydratesCell membraneForms protection (ex. Waterproofing) insulates bodySlide5
Structure of Fat
2003-2004
not a chain (polymer) = just a
“
big fat molecule”Slide6
Lipids Examples
Steroids-structure is a series of connected hexagonal rings. Cholesterol, hormone, cortizone. Triglyceride- glycerol with 3 fatty acids; fats in food, associated with cholesterol. Phospholipid- glycerol with 2 fatty acids; make up cell lipid bilayer membrane. Fats: insulates, stores energy, solid at room tempertureOils- liquid at room temp.Slide7
Saturated fats
Most animal fats solid at room temperatureLimit the amount in your dietcontributes to heart disease deposits in arteries
2003-2004Slide8
Unsaturated fats
Plant, vegetable & fish fats liquid at room temperaturethe fat molecules don’t stack tightlytogetherBetter choice in your diet
2003-2004Slide9
Test for Lipids
Brown paper bag test