Digestive System Webquest
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1 Name Date Digestive System Webquest PartI'IdentifyingDigestiveStructures Usethiswebsitetohelpyoulabelthefollowingdiagram. PartII'GettingtoKnowYourDigestiveSystem. Watchthefollowinganimationanduseittohelpyouanswerthequestionsthatfollow. organs_of_digestion.html 1. Themechanicalprocessofteethbreakingdownfoodiscalled. 2. Chemicaldigestionbeginsinthe whereyour glandssecrete. 3. Afterswallowing,yourbodyperformsaninvoluntarymovementcalled which forcesthefoodthroughtheesophagusintothestomach. 4. Thestomachhastheabilitytoexpandduetosmallfoldscalled.
2 5. Thestomachaidsindigestionbysecretingastrongacidcalled. 6. Thebolus,mixedwithstomachjuices,isnowcalled. 7. Oncefoodexitsthestomachthroughthe sphincter,itentersthefirstpartofthe smallintestinescalledthe. 8. Thechymethenflowsthroughtherestofthesmallintestine,consistingofthe and. 9. Theliverandpancreasareconsideredtobesecondarydigestivestructures.Whatrolesdotheyplayin digestion? 10. Anythingthatisn tdigestedinthesmallintestineispassedintothelargeintestinewhere and areabsorbedandtheremainingchymebecomes. 11. Whatistheroleoftherectum? PartIII'DigestiveEnzymes Readtheinformationfromthefollowingwebsitetohelpyouanswerthequestions Mostenzymesarenamedusingthesuffix 2. Howelseareenzymesnamed? 3. Enzymesarepartofwhatgroupofmacromolecule? 4. Thesubstancethattheenzymeconnectswithiscalledthe 5. Name2substancesthatcouldpossiblybindtotheactivesiteandthereforepoisonyou & 6. Whatclassofenzymesdodigestiveenzymesbelongtoandwhatistheirfunction? 7. Namethe5majorenzymeproducingstructuresofthedigestivesystem. a. b. c. d. e.
3 PartIV'GastrointestinalDiseases A.Thenewfadofgoing glutendfree hassweptthecountry.moreandmorepeoplearegoingonglutendfreedietsand moreandmorecompaniesarecomingoutwithglutendfreeproducts.readthefollowingarticletoeducateyourself aboutwhypeoplechoosetobeglutendfreeandwhoisreallyeffectedbygluten!answerthequestionsthatfollow Whatisgluten?Didyouknowthatmostpeoplewhoareglutenfreedonotevenknowwhatglutenis?Just watchthisclipfromjimmykimmel! 2. WhoSHOULDN Teatgluten,andwhy? 3. Mostpeoplewhoshouldnoteatglutensufferfromadiseasecalled disease.onlyabout ofthepopulationactuallysuffersfromthisdisease!however,about ofthepopulation suffersfromglutensensitivity.soifyouhavegastrointestinalissuestheysuggestyoutrybeingglutendfreefor aboutaweektoseeifithelps. 4. Whyisglutenallofasuddenanissue?Whydidn tourgrandparentsdealwiththiswaybackwhentheywere weelads? 5. WhyaremanydoctorsagainstaglutenDfreediet? B.IBSirritablebowelsyndrome)wasoncethoughttobeapsychologicaldisorder.Readthisarticletofindoutaboutthe truth! 1.WhatisIBS?Whatcausesit? 2.Howcannutritioneffectthisdisease? 3.Whatcanyoudotoimprovesymptoms? C.Research1othergastrointestinaldiseaseofyourchoice.Explainwhatitis,symptoms,whatcausesit,andhowyou canimprovethesymptoms.
4 PartV'Nutrition Beforeyoubeginthissection,calculateyourBMIBodyMassIndex)byusingthisonlineBMIcalculator 1. WhatisyourBMI? 2. HowmanycaloriesmustyouintaketomaintainyourBMI? 3. IfyourBMIishigherthantheaverage,whatcouldyoudotoyourdiettoliveahealthierlifestyle? 4. WhatcouldyoudotodecreaseyourBMIwithoutchangingyourcalorieconsumption? PartVI Enzymes Usethebelowwebsitetofillinthechart. Enzyme Production Site Substrate Products Salivary Amylase Lingual Pepsin Pancreatic Pancreatic Amylase Nuclease Trypsin Chymotrypsin Carboxypeptidase Sucrase Maltase
5 Lactase Intestinal Peptidase
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