Explain aboutthe nature , classification and propertiesof lipids (or) writea noteaboutlipids .

Explain aboutthe nature , classification and propertiesof lipids (or)

1.	Explain aboutthe nature , classification and propertiesof lipids (or) writea noteaboutlipids .
Answer» Solution :(i) Lipids are organicmolecules thatare solublein organicsolvents suchaschloroformandmethanoland are insolube in water . Lipids means fat. Theyaretheprincipalcomponentof cellmembrane including cellwalls . (II)Lipidsact asenergysourcefor livingsystem . Fat provide2-3fold higherenergycomparedto CARBOHYDRATE or proteins. (iii) Basedon theirstructure, lipids can beclassifiedas simple lipids, compoundlipids andderived lipids . (iv) Simplelipids CANBE furtherclassifedinto ,fats ,which areester of longchainfattyacidsfats ,withglycerol(triglycerides ) andwaxeswhichare ESTERS offattyacidwith longchainmonohydric alcohols ( Bee wax). (v) Compoundlipidsare the esterof simplefattyacidwithglycerolwhichcontainadditionalgroup. Basedon the groups , attached, theyare furtherclassifiedinto phospholipids , glycolipidsand lipproteins . Phospho lipidscontain a phospho esterlinkagewhilethe GLYCOLIPIDS containa sugr molecule attached . Thelipo proteins are complexes of lipidswithproteins .