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Midterm

NUTR Midterm #2.docx

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Department
Nutrition
Course
NUTR 1010
Professor
Troy Riddell
Semester
Winter

Description
NUTRMidterm2LipidsWhatarelipidsAlargegroupofmoleculesthatarenotsolubleinwaterWhatmakesthingssolubleinwaterthepolarityofmoleculesdeterminesiftheywillmixApolarmoleculewillmixwithwaterandanonpolarmoleculefattyacidsdonotmixWhatlipidsdoweeatLipidsinthedietconsistofTriglycerides95ofdietarylipidUsuallywhatweretalkingaboutwhenwesayfatPhospholipidsMakeupcellmembranesSterolsCholesterolisthemainoneTriglyceridesWeeattriglyceridesandstoreourbodyfatastriglyceridesMadeof1glycerolmoleculeglycerolbackboneWith3fattyacidsLonghydrophobicchainsofcarbonandhydrogenFattyAcidsDifferentfattyacidsgivetriglyceridesdifferentpropertiesFattyacidscanbedifferentLengthsSaturationShapesFattyAcidsofdifferentlengthsShortchainfattyacidsFewerthan6carbonatomsCanyouremembertalkingaboutshortchainfattyacidsbeforeMediumchainfattyacids612carbonsLongchainfattyacids13ormorecarbonsFattyAcidsLengthAffectsHowitisdigestedandprocessedinthebodyItsfunctioninthebodyItspropertiesbeforewhenyoueatitFattyAcidswithDifferentSaturationSaturatedSFAnodoublebondsUnsaturated1ormoredoublebondsMonounsaturatedMUFA1doublebondPolyunsaturatedPUFA2ormoredoublebondsSaturationAffectsSolidorliquidatroomtemperatureHowtheyareprocessedinthebodyTheeffectonhealthSaturatedsolidatroomtemperaturebecausetheycanbepackedclosertogethermakingthemtighterWhatfoodshaveSaturatedfatsSaturatedfatsanimalfoodstropicaloilsMonounsaturatedfatsOliveOilCanolaPolyunsaturatedfatsCanolasafflowercornoilfishnutsandseedsWhereisthedoublebondThebondclosesttotheendofthefattyacidTheomegaendThislastbondaffectshowyourbodyusesthefatOmega3fattyacidsdoublebondatthethirdcarbonfromtheendthOmega6fattyacidsdoublebondatthe6carbonfromtheendcountfromtheomegaendthenumberofCarbonCbeforethefirstdoublebondlefttorightdetermineswhetherOmega3orOmega6fattyacidTheShapeCishydrogenmoleculesonthesamesideTranshydrogenmoleculesonoppositesidesTransconfigurationcausesthemoleculetonotbendlikeitdoesinaCisfatSincetheydontbendtheyactalmostthesameassaturatedfatsTransaresolidinroomtemperatureMOSTfattyacidshavecisbondsTransfatareonnutritionlabelsSharelabelwithsaturatedfatbecausetheyhavesimilareffectsonourbodyTransfatsfoundnaturallyinanyproductthatcomesfromanimalswithmultiplestomachsexcows
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