Food Molecular Biology智慧樹知到期末考試答案章節(jié)答案2024年華南理工大學

FoodMolecularBiology智慧樹知到期末考試答案+章節(jié)答案2024年華南理工大學Thenutrientsinfoodmainlyincludewater,sugars,proteins,fats,inorganicsalts,vitaminsandcrudecellulose.Althoughthecrudecellulosecannotbedigestedandabsorbedbythehumanbody,ithasaveryimportantphysiologicaleffectonthehumanbody.Thefollowingfoodsarerichincrudefiber.（）

答案:Spinach.CeleryThemostabundanthydroxycinnamicacidderivativeinplantfoodsisanesterofcaffeicandquinicacids.（）

答案:對ObesityisdefinedwhenBMIexceedswhichofthefollowingvalues（）.

答案:30kg/m2Beefcontainsalotofphenoliccompounds.（）

答案:錯Themajorflavonolsare（）

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

答案:對Theamino-terminalimmunoglobulindomainsofeachchainisreferredtoastheconstantregions.（）

答案:錯Antibodiespossessdistinctantigen-bindingandeffectorunits.（）

答案:對AntibodiesBindSpecificMoleculesThroughHypervariableLoops.（）

答案:對IgGfoldconsistsofapairofβsheets,eachbuiltofantiparallelbstrands,thatsurroundacentralhydrophobiccore.（）

答案:對Allpolyphenolsareabsorbedwithequalefficacy.（）

答案:錯WheredoesIDH1work?()

答案:CytoplasmThepolyphenolhasbeenstronglydemonstratedtobenefitcancerpatients.（）

答案:錯Proanthocyanidinsarewellabsorbedinsmallintestine.（）

答案:錯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:錯Theantibodyconsistsoftwoheavychains,twolightchainsandhingeregion.（）

答案:對Inthemassspectrometry,thesmallerionrequireslesstimetotraversethechamber.（）

答案:對Mostantigenshaveseveralepitopes.（）

答案:對Intheprocessofelectrophoresis,theproteinwiththesmallestmolecularweightmovestheslowest.（）

答案:錯X-raycrystallographyisonlysuitableforthedeterminationofcrystalstructure.（）

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

答案:對ThelacZgenecanbeusedtoscreenbacteriacontainingrecombinantplasmids.AspecialplasmidcarriesacopyofthelacZgeneandanampicillin-resistancegene.（）

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

答案:對WeuseLipidmediatedgenedeliveryasexample.ItuseslipidstocauseacelltoabsorbexogenousDNAsincetheyarebothmadeofaphospholipidbilayer.（）

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

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

答案:對ThetemplatestrandhasasequencecomplementarytothatoftheRNAtranscript.（）

答案:對ThecodingstrandhasthesamesequenceasthatoftheRNAtranscript.（）

答案:錯DNApolymeraseareessentialforDNAreplicationandusuallyworkinpairstocreatetwoidenticalDNAstrandsfromasingleoriginalDNAmolecule.（）

答案:對Chromosomecontainsalineararrayofgenesandeachgeneresidesataparticularlocationonthechromosome.（）

答案:對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:對Allbeansarerichinisoflavones.（）

答案:錯Thestudysuggestedthatdietaryisoflavoneshaveasmallprotectiveeffectontheriskofbreastcancerbutnotlignans.（）

答案:對Zinconlyaffectsnonspecificinnateimmunesystem.()

答案:錯ThestrongestbondsinaDNAmoleculeoccurbetweenthebasesofthetwostrands.()

答案:錯Polyphenolscanbedividedintotwomaingroupsphenolicacidsanotheroneflavonoids（）

答案:對Eachchromosomeismadeofanunbrokendouble-strandedDNA.()

答案:對Bothtranscriptionandtranslationprocessesineukaryotescanbedividedintothreephases:initiation,prolongationandtermination.()

答案:對DNAtransfectedintocellscanbeintegratedintothegenomeofthehostcellorcanbepresentandexpressedoutsidethechromosome.()

答案:對E.coliexpressionsystemcanonlyexpresseukaryoticgenomicDNA,notcDNA.()

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

答案:對GlutamineandArgininemetabolisminintestinalepithelialcellsisassociatedwithepithelialbarrierandintestinalwoundrepair.()

答案:對Gelationhappenedwhenthehotstarchsolutionbeingcooled.（）

答案:對Beforeseparatingandpurifyingtheprotein,theproteinmustbereleasedbyanappropriatemethod.()

答案:對Biotincaninvolveinoxidation.()

答案:錯tRNAisalwaysconnectedtoanaminoacid.()

答案:錯Prebioticsaredigestiblefoodingredients.()

答案:錯ReactiveOxygenSpecies(Ros)inthevicinityoftheirproductionincreasesusceptibilitytocytotoxiceffectsbydestroyinglargemoleculessuchasDNA.()

答案:錯Proanthocyanidinsareverypoorlyabsorbedinoursmallintestine.（）

答案:對Na?veTcells,areconvertedintoactivatedeffectorTcellsafterencounteringantigen-presentingcells(APCs).()

答案:對TypeIIrestrictionenzymescleavesbothdouble-strandedDNAandsingle-strandedDNA.()

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

答案:對Aplasmidisasingle-strandedcircularDNAmolecule.()

答案:錯Unabsorbedportionsoffoodareamajornutritionalsourceforthesemicrobialcommunities.()

答案:對Bonemarrowcontainsimmaturecells,calledstemcells.()

答案:對AUGcodoncanbeastartcodonand/oracodonformethionine.（）

答案:對Flavonoidarethemostpolyphenolscompoundhavemuchinterestbecauseoftheirpowerfulantioxidantactivitiesinvitromodelsbeingabletoscavengeawiderangeoffreeradicals.（）

答案:對TranslationendswhenaterminatortRNAbindstoastopcodon.()

答案:錯Albumincouldnotbesynthesizedintheliver.()

答案:錯X-rayandNMRcandeterminatethestructureofprotein.()

答案:對Whichtypeofcellisthemajorregulatorofretinoicacid?()

答案:DendriticcellsMassspectrometryenablesthehighlypreciseandsensitivemeasurementofthe()ofaparticularmoleculewithoutpriorknowledgeofitsidentity.

答案:atomiccompositionAresonancespectrumforamoleculeisobtainedbykeeping()oftheelectromagneticradiation.

答案:magneticfieldconstantandvaryingthefrequencyWhatcanbeusedtorevealthebindingantigensoftheantibodies?()

答案:X-rayWhichofthefollowingarenotdigestivetract:（）

答案:LiverAntibodiespossessesdistinctantigen-bindingandeffectorunits.()

答案:對Someofthepolyphenolswillgotothecolonandthenoutthroughtheurine.()

答案:錯CocoapolyphenolscanaffecttheaccumulationofVLDLandTGthroughdifferentpathways.（）

答案:對Indole,indolepropionicacidandindoleacrylicacidaffectmucosalhomeostasisbydecreasedintestinalpermeabilitypossiblymediatedbythepregnaneXreceptor.()

答案:錯Thesecretionofgastricjuiceisaffectedbydifferentfood.Differentcookingmethodsofthesamefoodwillalsoaffectthedigestionofthestomach.（）

答案:對Thecompositionoftheimmunesystemisrelatedtospecificorganssuchasthespleenandliver.()

答案:錯Deoxyribonucleotideshavetwomoreoxygenatomsthanribonucleotide