Food Molecular Biology知到智慧樹章節(jié)測(cè)試課后答案2024年秋華南理工大學(xué)

FoodMolecularBiology知到智慧樹章節(jié)測(cè)試課后答案2024年秋華南理工大學(xué)第一章單元測(cè)試

ThetemplatestrandhasasequencecomplementarytothatoftheRNAtranscript.（）

A:錯(cuò)B:對(duì)

答案:對(duì)ThecodingstrandhasthesamesequenceasthatoftheRNAtranscript.（）

A:錯(cuò)B:對(duì)

答案:錯(cuò)Chromosomecontainsalineararrayofgenesandeachgeneresidesataparticularlocationonthechromosome.（）

A:錯(cuò)B:對(duì)

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

A:對(duì)B:錯(cuò)

答案:對(duì)DNApolymeraseareessentialforDNAreplicationandusuallyworkinpairstocreatetwoidenticalDNAstrandsfromasingleoriginalDNAmolecule.（）

A:錯(cuò)B:對(duì)

答案:對(duì)

第二章單元測(cè)試

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

A:對(duì)B:錯(cuò)

答案:對(duì)ThelacZgenecanbeusedtoscreenbacteriacontainingrecombinantplasmids.AspecialplasmidcarriesacopyofthelacZgeneandanampicillin-resistancegene.（）

A:對(duì)B:錯(cuò)

答案:對(duì)WeuseLipidmediatedgenedeliveryasexample.ItuseslipidstocauseacelltoabsorbexogenousDNAsincetheyarebothmadeofaphospholipidbilayer.（）

A:錯(cuò)B:對(duì)

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

A:對(duì)B:錯(cuò)

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

A:錯(cuò)B:對(duì)

答案:錯(cuò)

第三章單元測(cè)試

Intheprocessofelectrophoresis,theproteinwiththesmallestmolecularweightmovestheslowest.（）

A:錯(cuò)B:對(duì)

答案:錯(cuò)Theantibodyconsistsoftwoheavychains,twolightchainsandhingeregion.（）

A:錯(cuò)B:對(duì)

答案:對(duì)Mostantigenshaveseveralepitopes.（）

A:錯(cuò)B:對(duì)

答案:對(duì)Inthemassspectrometry,thesmallerionrequireslesstimetotraversethechamber.（）

A:錯(cuò)B:對(duì)

答案:對(duì)X-raycrystallographyisonlysuitableforthedeterminationofcrystalstructure.（）

A:錯(cuò)B:對(duì)

答案:對(duì)

第四章單元測(cè)試

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:錯(cuò)B:對(duì)

答案:錯(cuò)()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

第五章單元測(cè)試

WhatisthephysiologicalconcentrationrangeofhydrogenperoxideH2O2？（）

A:1000nM

B:1nM

C:100nM

D:10nM

答案:100nM

Allpolyphenolsareabsorbedwithequalefficacy.（）

A:對(duì)B:錯(cuò)

答案:錯(cuò)Proanthocyanidinsarewellabsorbedinsmallintestine.（）

A:錯(cuò)B:對(duì)

答案:錯(cuò)Thepolyphenolhasbeenstronglydemonstratedtobenefitcancerpatients.（）

A:錯(cuò)B:對(duì)

答案:錯(cuò)WheredoesIDH1work?()

A:Mitochondria

B:Nucleus

C:Cytoplasm

D:Outsidethecell

答案:Cytoplasm

第六章單元測(cè)試

TheretwotypesofImmuneresponse,includingInnateimmunityandadaptiveimmunity.（）

A:對(duì)B:錯(cuò)

答案:對(duì)Antibodiespossessdistinctantigen-bindingandeffectorunits.（）

A:錯(cuò)B:對(duì)

答案:對(duì)AntibodiesBindSpecificMoleculesThroughHypervariableLoops.（）

A:對(duì)B:錯(cuò)

答案:對(duì)Theamino-terminalimmunoglobulindomainsofeachchainisreferredtoastheconstantregions.（）

A:對(duì)B:錯(cuò)

答案:錯(cuò)IgGfoldconsistsofapairofβsheets,eachbuiltofantiparallelbstrands,thatsurroundacentralhydrophobiccore.（）

A:錯(cuò)B:對(duì)

答案:對(duì)

第七章單元測(cè)試

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:對(duì)B:錯(cuò)

答案:錯(cuò)Themajorflavonolsare（）

A:Myricetin

B:Quercetin

C:Kaempferol

D:Flavanones

答案:Myricetin

；Quercetin

；Kaempferol

；Flavanones

Them