雨课堂学堂在线学堂云《Biomedical Sensors（北京航空航天）》单元测试考核答案

第1题()aresubstancesthatcanstimulateanimmuneresponseinananimal'sbody.AAntibodyB

ImmunebodyCImmunecellsDAntigens第2题Thespecificityoftheantigenisdeterminedby()AMolecularweightofantigenBThenumberofantigenicdeterminants

CThenature,numberandspatialconfigurationofantigenicdeterminantsDAntigenimmunoreactivity第3题Cellsthatcandifferentiateandproliferateafterbeingstimulatedbyantigenare()AAPCcellsBNKcellsCBasophilsDBcells第4题Therespirationofmicroorganismscanbeusedtomeasurethestructureofoxygenelectrodeor(

)electrode.ACO2B.NO2CSO2DCO第5题RegardingtheeffectofpHonenzymeactivity,whichofthefollowingiswrong?()AAffectthedissociationstateofessentialgroupsB

CanaffectthedissociationstateofthesubstrateCEnzymeshavethehighestactivityinacertainpHrangeDDestroytheprimarystructureoftheenzymeproteinE

ChangesinpHcanaffecttheKmvalueofenzymes第6题Whichofthefollowingtypesofmolecularrecognitioncomponentsofbiosensorsinclude?A

EnzymemembraneBWholecellmembraneCTissuemembraneDOrganellemembrane正确答案：ABCD第7题Comparedwithgeneralcatalysts,whatarethefollowingcharacteristicsofenzymecatalysis?AHighlyspecific.BHighcatalyticefficiencyCSomeenzymes(suchasdegassingenzymes)requirecoenzymesorprostheticgroups.DTheactivityofenzymesinthebodyisoftenregulatedinmanyways.正确答案：ABCD第8题Thecharacteristicsofthemechanismofenzymeactionincludewhichofthefollowing?AReducereactionactivationenergyBStructurespecificityCActivecenterofenzymeDTheactivityofenzymesinthebodyisoftenregulatedinmanyways.正确答案：ABCD第9题Whichofthefollowingmethodsofenzymesensorsignalconversioninclude?APotentiometricmethodB

EnzymeelectrodeCCurrentmethodDResistancemethod正确答案：ABCD第10题Whichofthefollowingmethodsofenzymesensorsignalconversioninclude?APotentiometricmethodB

EnzymeelectrodeCCurrentmethodDResistancemethod正确答案：ABC第11题

Themainpurposeofimmobilizationistolimitbiologicalsensitiveelementssuchasenzymestoacertainspace,butdoesnothinderthefreediffusionoftheanalyte第1题Theresponsetimereflectshowfasttheoutputcharacteristicquantityofthehumiditysensorchangeswiththerelativehumiditywhentherelative(

)changes.ATimeBTemperatureC

SpaceDHumidity第2题Agassensorreferstoadevicethatcanconvert(

)ofthemeasuredgasintoanelectricaloutputthathasacertainrelationshipwithit.ACompositionB

VolumeC

ConcentrationDPressure第3题Thesemiconductorgassensorusesasemiconductorgassensortocontactthegas,causing(

)tochange,therebydetectingthecompositionandconcentrationofaspecificgas.AResistanceofsemiconductor

BCurrentofsemiconductorCVoltageonsemiconductorDPropertiesofsemiconductor第4题Aftertheheatingwireofthegassensorisenergizedandheated,theresistancevalueofthesensitiveelementfirstdropssharply,andgenerallyreachesastableresistanceoutputstateafteratransitionprocessofabout2to10minutes.Thisstateiscalled(

).A

Static

BInitialstablestateCFinalstablestateDWorkingstate第5题Generallyspeaking,ifgasisadsorbedonthesurfaceofthesemiconductor,electronswillbeacceptedbetweenthesemiconductorandtheadsorbedgas,causingelectronmigrationtoform(

).ACurrentBPotentialdifferenceCSurfacechargelayerDDeepcharge第6题Accordingtothenatureofthesensor,thefollowing(

)arephysicalsensors.AGas-sensingelectrodeBIon-selectiveelectrodeC

MicrobialsensorDPhotoelectricsensor第7题ThelargertheselectivitycoefficientKijoftheionselectiveelectrode,thebettertheselectivityoftheelectrodetobemeasuredfortheioni.第8题Theoriginalelectrodeintheclassificationofionselectiveelectrodesisamembraneelectrode,whilethesensitizedelectrodeisnotamembraneelectrode.第9题Inordertomaketheionstobemeasuredquicklyreachthesurfaceoftheelectrode,usuallythemethodofstirringthesolutioncanbeused.第10题Thesmallerthechargenumberoftheiontobemeasured,thehigherthesensitivityofthemeasurementandthesmallertheerrorgenerated.Therefore,thepotentiometricmethodismostlyusedforthemeasurementoflow-valentions.第11题Inordertomaketheresponsespeedoftheiontobemeasuredfaster,thethinnertheelectrodemembrane,thebetter.第1题Inordertomaketheresponsespeedoftheiontobemeasuredfaster,thethinnertheelectrodemembrane,thebetter.第2题Inordertomaketheresponsespeedoftheiontobemeasuredfaster,thethinnertheelectrodemembrane,thebetter.第3题Inordertomaketheresponsespeedoftheiontobemeasuredfaster,thethinnertheelectrodemembrane,thebetter.第4题Inordertomaketheresponsespeedoftheiontobemeasuredfaster,thethinnertheelectrodemembrane,thebetter.第5题Inordertomaketheresponsespeedoftheiontobemeasuredfaster,thethinnertheelectrodemembrane,thebetter.第6题Inordertomaketheresponsespeedoftheiontobemeasuredfaster,thethinnertheelectrodemembrane,thebetter.第7题Inordertomaketheresponsespeedoftheiontobemeasuredfaster,thethinnertheelectrodemembrane,thebetter.第8题Inordertomaketheresponsespeedoftheiontobemeasuredfaster,thethinnertheelectrodemembrane,thebetter.第9题Inordertomaketheresponsespeedoftheiontobemeasuredfaster,