Food Molecular Biology知到智慧树章节测试课后答案2024年秋华南理工大学

FoodMolecularBiology知到智慧树章节测试课后答案2024年秋华南理工大学第一章单元测试

ThetemplatestrandhasasequencecomplementarytothatoftheRNAtranscript.（）

A:错B:对

答案:对ThecodingstrandhasthesamesequenceasthatoftheRNAtranscript.（）

A:错B:对

答案:错Chromosomecontainsalineararrayofgenesandeachgeneresidesataparticularlocationonthechromosome.（）

A:错B:对

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

A:对B:错

答案:对DNApolymeraseareessentialforDNAreplicationandusuallyworkinpairstocreatetwoidenticalDNAstrandsfromasingleoriginalDNAmolecule.（）

A:错B:对

答案:对

第二章单元测试

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

A:对B:错

答案:对ThelacZgenecanbeusedtoscreenbacteriacontainingrecombinantplasmids.AspecialplasmidcarriesacopyofthelacZgeneandanampicillin-resistancegene.（）

A:对B:错

答案:对WeuseLipidmediatedgenedeliveryasexample.ItuseslipidstocauseacelltoabsorbexogenousDNAsincetheyarebothmadeofaphospholipidbilayer.（）

A:错B:对

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

A:对B:错

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

A:错B:对

答案:错

第三章单元测试

Intheprocessofelectrophoresis,theproteinwiththesmallestmolecularweightmovestheslowest.（）

A:错B:对

答案:错Theantibodyconsistsoftwoheavychains,twolightchainsandhingeregion.（）

A:错B:对

答案:对Mostantigenshaveseveralepitopes.（）

A:错B:对

答案:对Inthemassspectrometry,thesmallerionrequireslesstimetotraversethechamber.（）

A:错B:对

答案:对X-raycrystallographyisonlysuitableforthedeterminationofcrystalstructure.（）

A:错B:对

答案:对

第四章单元测试

Whichtypeofcellsisprimarilyresponsiblefornutrientsensing?（）

A:Stemcells

B:Panethcells

C:Mastcells

D:Enteroendocrinecells

答案:Enteroendocrinecells

()isthebasicarchitecturalunitoftheliver

A:Kupffercells

B:Portalvein

C:Liverlobule

D:Liversinusoid

答案:Liverlobule

Thelivercanonlymetabolizeproteinandlipid.()

A:错B:对

答案:错()caninduceNAFLD.

A:Richinsucrose

B:Highfructose

C:Hightalcohol

D:Highsaturatedfat

答案:Richinsucrose

；Highfructose

；Highsaturatedfat

Whatarethecentersofmetabolism?

A:Pancreas,brain,muscle,adiposetissueandliverB:Pancreas,muscle,adiposetissueandliverC:Pancreas,brain,muscle,adiposetissue,kidneyandliverD:Pancreas,brain,muscleandliver

答案:Pancreas,brain,muscle,adiposetissueandliver

第五章单元测试

WhatisthephysiologicalconcentrationrangeofhydrogenperoxideH2O2？（）

A:1000nM

B:1nM

C:100nM

D:10nM

答案:100nM

Allpolyphenolsareabsorbedwithequalefficacy.（）

A:对B:错

答案:错Proanthocyanidinsarewellabsorbedinsmallintestine.（）

A:错B:对

答案:错Thepolyphenolhasbeenstronglydemonstratedtobenefitcancerpatients.（）

A:错B:对

答案:错WheredoesIDH1work?()

A:Mitochondria

B:Nucleus

C:Cytoplasm

D:Outsidethecell

答案:Cytoplasm

第六章单元测试

TheretwotypesofImmuneresponse,includingInnateimmunityandadaptiveimmunity.（）

A:对B:错

答案:对Antibodiespossessdistinctantigen-bindingandeffectorunits.（）

A:错B:对

答案:对AntibodiesBindSpecificMoleculesThroughHypervariableLoops.（）

A:对B:错

答案:对Theamino-terminalimmunoglobulindomainsofeachchainisreferredtoastheconstantregions.（）

A:对B:错

答案:错IgGfoldconsistsofapairofβsheets,eachbuiltofantiparallelbstrands,thatsurroundacentralhydrophobiccore.（）

A:错B:对

答案:对

第七章单元测试

Thenutrientsinfoodmainlyincludewater,sugars,proteins,fats,inorganicsalts,vitaminsandcrudecellulose.Althoughthecrudecellulosecannotbedigestedandabsorbedbythehumanbody,ithasaveryimportantphysiologicaleffectonthehumanbody.Thefollowingfoodsarerichincrudefiber.（）

A:Milk.Beef

B:Fish.Shrimp

C:Eggs.Pork

D:Spinach.Celery

答案:Spinach.Celery

Beefcontainsalotofphenoliccompounds.（）

A:对B:错

答案:错Themajorflavonolsare（）

A:Myricetin

B:Quercetin

C:Kaempferol

D:Flavanones

答案:Myricetin

；Quercetin

；Kaempferol

；Flavanones

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