Food Molecular Biology智慧樹知到課后章節(jié)答案2023年下華南理工大學

FoodMolecularBiology智慧樹知到課后章節(jié)答案2023年下華南理工大學華南理工大學

第一章測試

ThetemplatestrandhasasequencecomplementarytothatoftheRNAtranscript.（）

A:錯B:對

答案:對

ThecodingstrandhasthesamesequenceasthatoftheRNAtranscript.（）

A:錯B:對

答案:錯

Chromosomecontainsalineararrayofgenesandeachgeneresidesataparticularlocationonthechromosome.（）

A:對B:錯

答案:對

Transposableelements(TEs),alsoknownas"jumpinggenes,"areDNAsequencesthatmovefromonelocationonthegenometoanotherlocation.（）

A:對B:錯

答案:對

DNApolymeraseareessentialforDNAreplicationandusuallyworkinpairstocreatetwoidenticalDNAstrandsfromasingleoriginalDNAmolecule.（）

A:錯B:對

答案:對

第二章測試

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

A:錯B:對

答案:對

ThelacZgenecanbeusedtoscreenbacteriacontainingrecombinantplasmids.AspecialplasmidcarriesacopyofthelacZgeneandanampicillin-resistancegene.（）

A:對B:錯

答案:對

WeuseLipidmediatedgenedeliveryasexample.ItuseslipidstocauseacelltoabsorbexogenousDNAsincetheyarebothmadeofaphospholipidbilayer.（）

A:對B:錯

答案:對

Whenyoudoingtransgenicplant,youcoulddooverexpression,geneknock-downorgeneknockout.OverexpressionusuallyreferstoanexperimentwhenDNAisaddedtothecelltoforceexpressionofthegenetoamuchhigherthannormallevel.（）

A:錯B:對

答案:對

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

A:錯B:對

答案:錯

第三章測試

Intheprocessofelectrophoresis,theproteinwiththesmallestmolecularweightmovestheslowest.（）

A:對B:錯

答案:錯

Theantibodyconsistsoftwoheavychains,twolightchainsandhingeregion.（）

A:對B:錯

答案:對

Mostantigenshaveseveralepitopes.（）

A:錯B:對

答案:對

Inthemassspectrometry,thesmallerionrequireslesstimetotraversethechamber.（）

A:錯B:對

答案:對

X-raycrystallographyisonlysuitableforthedeterminationofcrystalstructure.（）

A:對B:錯

答案:對

第四章測試

Whichtypeofcellsisprimarilyresponsiblefornutrientsensing?（）

A:Mastcells

B:Enteroendocrinecells

C:Panethcells

D:Stemcells

答案:Enteroendocrinecells

()isthebasicarchitecturalunitoftheliver

A:Portalvein

B:Kupffercells

C:Liverlobule

D:Liversinusoid

答案:Liverlobule

Thelivercanonlymetabolizeproteinandlipid.()

A:對B:錯

答案:錯

()caninduceNAFLD.

A:Hightalcohol

B:Highsaturatedfat

C:Highfructose

D:Richinsucrose

答案:Highsaturatedfat

;Highfructose

;Richinsucrose

Whatarethecentersofmetabolism?

A:Pancreas,brain,muscleandliverB:Pancreas,brain,muscle,adiposetissue,kidneyandliverC:Pancreas,muscle,adiposetissueandliverD:Pancreas,brain,muscle,adiposetissueandliver

答案:Pancreas,brain,muscle,adiposetissueandliver

第五章測試

WhatisthephysiologicalconcentrationrangeofhydrogenperoxideH2O2？（）

A:1nM

B:10nM

C:100nM

D:1000nM

答案:100nM

Allpolyphenolsareabsorbedwithequalefficacy.（）

A:錯B:對

答案:錯

Proanthocyanidinsarewellabsorbedinsmallintestine.（）

A:對B:錯

答案:錯

Thepolyphenolhasbeenstronglydemonstratedtobenefitcancerpatients.（）

A:錯B:對

答案:錯

WheredoesIDH1work?()

A:Cytoplasm

B:Outsidethecell

C:Nucleus

D:Mitochondria

答案:Cytoplasm

第六章測試

TheretwotypesofImmuneresponse,includingInnateimmunityandadaptiveimmunity.（）

A:錯B:對

答案:對

Antibodiespossessdistinctantigen-bindingandeffectorunits.（）

A:對B:錯

答案:對

AntibodiesBindSpecificMoleculesThroughHypervariableLoops.（）

A:錯B:對

答案:對

Theamino-terminalimmunoglobulindomainsofeachchainisreferredtoastheconstantregions.（）

A:對B:錯

答案:錯

IgGfoldconsistsofapairofβsheets,eachbuiltofantiparallelbstrands,thatsurroundacentralhydrophobiccore.（）

A:錯B:對

答案:對

第七章測試

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

A:Spinach.Celery

B:Fish.Shrimp

C:Eggs.Pork

D:Milk.Beef

答案:Spinach.Celery

Beefcontainsalotofphenoliccompounds.（）

A:錯B:對

答案:錯

Themajorflavonolsare（）

A:Kaempferol

B:Quercetin

C:Flavanones

D:Myricetin

答案:Kaempferol

;Quercetin

;Flavanones

;Myricetin

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