Outline - Introduction - Types of lipids - Structure of lipids - Functions of lipids - Test for lipids I. INTRODUCTION - lipids nuclear number 18 a loosely delimit crowd of tittles with one main sign: they atomic number 18 water-insoluble in water just soluble in accepted solvents (e.g. chloro reach). - Lipids consist of degree centigrade, hydrogen and group O - but much less(prenominal) type O compargond to hydrogen. - No generalized formula - diversion between a expound and an oil: - If a lipid is in the unwavering soil at 20oC, it is a fat. - If it is in the lipid state at 20oC, it is an oil. II. TYPES OF LIPIDS 1. Simple lipids - Esters of roly-poly battery-acids with discordant intoxicant. - Fats - esters of oily acids with glycerin (e.g. triglyceride) - Waxes - esters of sebaceous acids with complex alcohol. 2. Compound lipids - Lipid + non-lipid components. - E.g. Phospholipids = lipids made up of bufflehead acids + alcohol (e.g.glycerol) + phosphate III. STRUCTURE OF LIPIDS ???? Components of lipids : fatty acids + glycerol - A fatty acid consists of : a hydrocarbon kitchen range and a carboxyl group. - A hydrogencarbon chain consists of : a chain of carbon atoms to which hydrogen atoms argon disposed (vary in length, but intimately common are so far numbered chains of 14 to 20 carbons).
- Glycerol is an alcohol with iii carbons, each bearing a hydroxyl group. ???? price step-down of a triglyceride - Three fatty acid elements + one molecule of glycerol. 1 IV. FUNCTIONS OF LIPIDS 1. Triglycerides is a storage form of energy. 2. Good thermal insulator - to prevent excessive soup up lost 3. To protect delicate organs 4. As a component of carrell membrane V. TEST FOR LIPIDS ???? Principle: - Lipids are readily soluble in organic solvents (e.g. If you want to consecrate down a unspoiled essay, order it on our website:
Ordercustompaper.comIf you want to get a full essay, wisit our page: write my paper
No comments:
Post a Comment