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Canada (161,733)
York University (12,820)
KINE 4020 (29)
Chapter 3

Chapter 3

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Department
Kinesiology & Health Science
Course
KINE 4020
Professor
Roger Kelton
Semester
Winter

Description
Enriched Instructors Manual to Accompany Understanding Nutrition First Canadian Edition 31Chapter 3Digestion Absorption and TransportIFNOTHINGELSEMYSTUDENTSSHOULDLEARN1ThatthegastrointestinaltractisaflexiblemusculartubethatdigestsiebreaksdownnutrientsforabsorptionintothelymphaticandcardiovascularsystemsItisimportanttoknowthenamesandlocationofallofthepartsthatmakeupthedigestivesystembothdigestiveandaccessoryorgansandtheirroleindigestion2ThatthefunctioningofthegastrointestinalGIsystemisregulatedbytheendocrineandnervoussystems3ThatthegastrointestinalsystemusesdifferentmechanismstoabsorbmacroandmicronutrientsLEARNINGOBJECTIVESStudentsshouldbeabletoLO31DescribethelevelsoforganizationinthebodyandidentifysomebasicwaysinwhichnutritionsupportsthemUnderstandApplyLO32DefinethetermsmechanicaldigestionandchemicaldigestionandpointoutwheretheseprocessesoccuralongthedigestivetractRememberUnderstandLO33TracethebreakdownandabsorptionofcarbohydratefatandproteinfromthemouthtothecolonRememberUnderstandLO34ExplainhownutrientsaretransportedandstoredinthebodyUnderstandLO35ListthefiveorgansandtheirsecretionsthatassistinthebreakdownoffoodUnderstandApplyLO36ListthesecretionsthatbreakdowncarbohydratesproteinandlipidsRememberUnderstandLO37DescribetheanatomyandmechanismsofnutrientabsorptionfromthegastrointestinalsystemtothelymphaticandcardiovascularsystemsRememberUnderstandCopyright2013 by Nelson Education LtdEnriched Instructors Manual to Accompany Understanding Nutrition First Canadian Edition 32LO38IdentifythehormonesinvolvedindigestiveandabsorptiveprocessesUnderstandLO39ApplytheconceptspresentedinthechaptertoexplaincommondigestivetractproblemsUnderstandWHYISTHISCHAPTERIMPORTANTTOSCIENTISTSANDHEALTHCAREPRACTITIONERSOfspecialinteresttosymbolkeyHealthCarePractitionersScienceMajorsThefunctioningofallbodycellsisdependentupontheenergyprovidedbythemacronutrientsiecarbohydratesproteinandlipidsandoxygenTheprovisionofmicronutrientsinthefoodweeatenablesthebodyscellstoharnessthestoredchemicalenergyinthemacronutrientsAcellsgenescontrolthetypeofworkthatisdonebyeachcellbymakingnewproteinprovidedthatthedietsuppliesthebodywithasourceoftheproteinsbuildingblocksieaminoacidsScientistshavediscoveredmanydietaryfactorsinfluencethedevelopmentandorprogressionofvariousdiseasesDiseasesinvolvingcarbohydratemetabolismegdiabetesmellitusaresignificantlyaffectedbythequalityofthecarbohydrateingestedaspartofthedietForexamplesocalledgoodcarbsandbadcarbsbothprovidethenecessaryglucosemoleculesforthebodysenergyneedsyetthetypeofcarbplaysanimportantroleinthebodysresponsetothosemacronutrientsThehealthcarepractitionerwilloftenrecommendtopatientstofollowamixeddietthatincludescomplexcarbohydratesandfibreinordertogenerateamorestablebloodglucoselevelwhileminimizingdrasticfluctuationsininsulinTheeffectivenessofhighproteindietsinweightlossmanagementhasledmanyscientiststoinvestigatehowproteiningestionquantityqualityandtimingmaycontributetohumanhealthandfitnessHealthcarepractitionershavealsorealizedthatingestingahighqualityproteinimmediatelyfollowingboutsofexerciseleadstoalevelofpositiveproteinbalancebystimulatingproteinsynthesisUnderstandinghowthebodyabsorbslipidsandlipidsolubledietaryitemsiefatsolublevitaminshasprovidedimportantguidelinesforconsumingvarioustypesoffatsthatwouldeitherincreaseordecreaseriskfactorsforcardiovasculardiseaseThehealthcarepractitionershoulddevelopanunderstandingoflipidabsorptioninordertocounselfuturepatientsonthenegativeeffectsofadiethighinfatsCopyright2013 by Nelson Education Ltd
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