Food Molecular Biology智慧树知到期末考试答案章节答案2024年华南理工大学

FoodMolecularBiology智慧树知到期末考试答案+章节答案2024年华南理工大学Thenutrientsinfoodmainlyincludewater,sugars,proteins,fats,inorganicsalts,vitaminsandcrudecellulose.Althoughthecrudecellulosecannotbedigestedandabsorbedbythehumanbody,ithasaveryimportantphysiologicaleffectonthehumanbody.Thefollowingfoodsarerichincrudefiber.（）

答案:Spinach.CeleryThemostabundanthydroxycinnamicacidderivativeinplantfoodsisanesterofcaffeicandquinicacids.（）

答案:对ObesityisdefinedwhenBMIexceedswhichofthefollowingvalues（）.

答案:30kg/m2Beefcontainsalotofphenoliccompounds.（）

答案:错Themajorflavonolsare（）

答案:Flavanones;Kaempferol;Quercetin;MyricetinTheretwotypesofImmuneresponse,includingInnateimmunityandadaptiveimmunity.（）

答案:对Theamino-terminalimmunoglobulindomainsofeachchainisreferredtoastheconstantregions.（）

答案:错Antibodiespossessdistinctantigen-bindingandeffectorunits.（）

答案:对AntibodiesBindSpecificMoleculesThroughHypervariableLoops.（）

答案:对IgGfoldconsistsofapairofβsheets,eachbuiltofantiparallelbstrands,thatsurroundacentralhydrophobiccore.（）

答案:对Allpolyphenolsareabsorbedwithequalefficacy.（）

答案:错WheredoesIDH1work?()

答案:CytoplasmThepolyphenolhasbeenstronglydemonstratedtobenefitcancerpatients.（）

答案:错Proanthocyanidinsarewellabsorbedinsmallintestine.（）

答案:错WhatisthephysiologicalconcentrationrangeofhydrogenperoxideH2O2？（）

答案:100nMWhatarethecentersofmetabolism?

答案:Pancreas,brain,muscle,adiposetissueandliver()caninduceNAFLD.

答案:Richinsucrose;Highfructose;HighsaturatedfatWhichtypeofcellsisprimarilyresponsiblefornutrientsensing?（）

答案:Enteroendocrinecells()isthebasicarchitecturalunitoftheliver

答案:LiverlobuleThelivercanonlymetabolizeproteinandlipid.()

答案:错Theantibodyconsistsoftwoheavychains,twolightchainsandhingeregion.（）

答案:对Inthemassspectrometry,thesmallerionrequireslesstimetotraversethechamber.（）

答案:对Mostantigenshaveseveralepitopes.（）

答案:对Intheprocessofelectrophoresis,theproteinwiththesmallestmolecularweightmovestheslowest.（）

答案:错X-raycrystallographyisonlysuitableforthedeterminationofcrystalstructure.（）

答案:对Whenyoudoingtransgenicplant,youcoulddooverexpression,geneknock-downorgeneknockout.OverexpressionusuallyreferstoanexperimentwhenDNAisaddedtothecelltoforceexpressionofthegenetoamuchhigherthannormallevel.（）

答案:对ThelacZgenecanbeusedtoscreenbacteriacontainingrecombinantplasmids.AspecialplasmidcarriesacopyofthelacZgeneandanampicillin-resistancegene.（）

答案:对DNAsequencesthatarehighlyenrichedinG–Cbasepairstypicallyhavehighmeltingtemperatures.Therefore,PCRamplificationisgreatlyhinderedbythepresenceofG–C-richregionswithinthetemplate.（）

答案:对WeuseLipidmediatedgenedeliveryasexample.ItuseslipidstocauseacelltoabsorbexogenousDNAsincetheyarebothmadeofaphospholipidbilayer.（）

答案:对ThetechniqueweuseforgeneknockdownissmallinterferingRNA(siRNA).SometimeswecallshortinterferingRNAorsilencingRNA,itisaclassofsingle-strandedRNAnon-codingRNAmolecules,20-25basepairsinlength,andoperatingwithintheRNAinterference(RNAi)pathway.（）

答案:错Transposableelements(TEs),alsoknownas"jumpinggenes,"areDNAsequencesthatmovefromonelocationonthegenometoanotherlocation.（）

答案:对ThetemplatestrandhasasequencecomplementarytothatoftheRNAtranscript.（）

答案:对ThecodingstrandhasthesamesequenceasthatoftheRNAtranscript.（）

答案:错DNApolymeraseareessentialforDNAreplicationandusuallyworkinpairstocreatetwoidenticalDNAstrandsfromasingleoriginalDNAmolecule.（）

答案:对Chromosomecontainsalineararrayofgenesandeachgeneresidesataparticularlocationonthechromosome.（）

答案:对DNApolymeraseprobablysynthesizesinthe5’→3’directionbecause_____?()

答案:ThatallowssynthesistoresumeeasilyifonebaseneedstoberemovedWhereisvitaminDsynthesizedfromtheactionofsunlight?()

答案:IntheskinIgGmoleculesinclude()antigen-bindingsites,antibodiescancross-linkmultivalentantigenssuchasviralsurfaces.()

答案:2WhatistheconcentrationofH2O2inthecellthatcausesoxidativedamage?()

答案:100-10,000nmDuringmuscleatrophy,()systemsareactivated,andcontractileproteinsandorganellesareremoved,resultingintheshrinkageofmusclefibers.

答案:ProteolyticWhichprotocolisusedtoidentifytheimmunecells?()

答案:CD()organoidmodelcancloselymimicthenutrientsexchangebetweenstoma,intestineandliver.Thiscanbeamodelforinvestigatingthenutrientmetabolism.

答案:gastrointestinaltract-liverWhichformofpolyphenolsisthemostattractive?()

答案:FlavonoidThedigestiveepitheliumreleasesavarietyofendocrinehormonesandpeptides.Whichofthefollowingsystemsregulatestheactivityandmetabolismofthedigestivesystem?（）

答案:NervoussystemChildrenandadolescentsandpostoperativepatientsshouldeatmoremilk,eggsandfish,becausethesefoodsarerichin（）

答案:ProteinDuetothestructurediversityofphenoliccompoundsthatoccurinnature,theyarerecognizedasvaluableplantmoleculeswithveryimportantbiologicalfunctions.（）

答案:对Allbeansarerichinisoflavones.（）

答案:错Thestudysuggestedthatdietaryisoflavoneshaveasmallprotectiveeffectontheriskofbreastcancerbutnotlignans.（）

答案:对Zinconlyaffectsnonspecificinnateimmunesystem.()

答案:错ThestrongestbondsinaDNAmoleculeoccurbetweenthebasesofthetwostrands.()

答案:错Polyphenolscanbedividedintotwomaingroupsphenolicacidsanotheroneflavonoids（）

答案:对Eachchromosomeismadeofanunbrokendouble-strandedDNA.()

答案:对Bothtranscriptionandtranslationprocessesineukaryotescanbedividedintothreephases:initiation,prolongationandtermination.()

答案:对DNAtransfectedintocellscanbeintegratedintothegenomeofthehostcellorcanbepresentandexpressedoutsidethechromosome.()

答案:对E.coliexpressionsystemcanonlyexpresseukaryoticgenomicDNA,notcDNA.()

答案:错Varioustypesofcells,suchasinnateimmunecells,adaptiveimmunecellsandintestinalepithelialcells,areinvolvedinthegutimmunesystem.()

答案:对GlutamineandArgininemetabolisminintestinalepithelialcellsisassociatedwithepithelialbarrierandintestinalwoundrepair.()

答案:对Gelationhappenedwhenthehotstarchsolutionbeingcooled.（）

答案:对Beforeseparatingandpurifyingtheprotein,theproteinmustbereleasedbyanappropriatemethod.()

答案:对Biotincaninvolveinoxidation.()

答案:错tRNAisalwaysconnectedtoanaminoacid.()

答案:错Prebioticsaredigestiblefoodingredients.()

答案:错ReactiveOxygenSpecies(Ros)inthevicinityoftheirproductionincreasesusceptibilitytocytotoxiceffectsbydestroyinglargemoleculessuchasDNA.()

答案:错Proanthocyanidinsareverypoorlyabsorbedinoursmallintestine.（）

答案:对NaïveTcells,areconvertedintoactivatedeffectorTcellsafterencounteringantigen-presentingcells(APCs).()

答案:对TypeIIrestrictionenzymescleavesbothdouble-strandedDNAandsingle-strandedDNA.()

答案:错Themajorhydroxycinnamicacidsarep-coumaricacid,caffeicacid,themethylatedformsferulicandsinapicacids.（）

答案:对Aplasmidisasingle-strandedcircularDNAmolecule.()

答案:错Unabsorbedportionsoffoodareamajornutritionalsourceforthesemicrobialcommunities.()

答案:对Bonemarrowcontainsimmaturecells,calledstemcells.()

答案:对AUGcodoncanbeastartcodonand/oracodonformethionine.（）

答案:对Flavonoidarethemostpolyphenolscompoundhavemuchinterestbecauseoftheirpowerfulantioxidantactivitiesinvitromodelsbeingabletoscavengeawiderangeoffreeradicals.（）

答案:对TranslationendswhenaterminatortRNAbindstoastopcodon.()

答案:错Albumincouldnotbesynthesizedintheliver.()

答案:错X-rayandNMRcandeterminatethestructureofprotein.()

答案:对Whichtypeofcellisthemajorregulatorofretinoicacid?()

答案:DendriticcellsMassspectrometryenablesthehighlypreciseandsensitivemeasurementofthe()ofaparticularmoleculewithoutpriorknowledgeofitsidentity.

答案:atomiccompositionAresonancespectrumforamoleculeisobtainedbykeeping()oftheelectromagneticradiation.

答案:magneticfieldconstantandvaryingthefrequencyWhatcanbeusedtorevealthebindingantigensoftheantibodies?()

答案:X-rayWhichofthefollowingarenotdigestivetract:（）

答案:LiverAntibodiespossessesdistinctantigen-bindingandeffectorunits.()

答案:对Someofthepolyphenolswillgotothecolonandthenoutthroughtheurine.()

答案:错CocoapolyphenolscanaffecttheaccumulationofVLDLandTGthroughdifferentpathways.（）

答案:对Indole,indolepropionicacidandindoleacrylicacidaffectmucosalhomeostasisbydecreasedintestinalpermeabilitypossiblymediatedbythepregnaneXreceptor.()

答案:错Thesecretionofgastricjuiceisaffectedbydifferentfood.Differentcookingmethodsofthesamefoodwillalsoaffectthedigestionofthestomach.（）

答案:对Thecompositionoftheimmunesystemisrelatedtospecificorganssuchasthespleenandliver.()

答案:错Deoxyribonucleotideshavetwomoreoxygenatomsthanribonucleotide