第1題()aresubstancesthatcanstimulateanimmuneresponseinananimal'sbody.AAntibodyB

ImmunebodyCImmunecellsDAntigens第2題Thespecificityoftheantigenisdeterminedby()AMolecularweightofantigenBThenumberofantigenicdeterminants

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

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

CanaffectthedissociationstateofthesubstrateCEnzymeshavethehighestactivityinacertainpHrangeDDestroytheprimarystructureoftheenzymeproteinE

ChangesinpHcanaffecttheKmvalueofenzymes第6題Whichofthefollowingtypesofmolecularrecognitioncomponentsofbiosensorsinclude?A

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

EnzymeelectrodeCCurrentmethodDResistancemethod正確答案：ABCD第10題Whichofthefollowingmethodsofenzymesensorsignalconversioninclude?APotentiometricmethodB

EnzymeelectrodeCCurrentmethodDResistancemethod正確答案：ABC第11題

Themainpurposeofimmobilizationistolimitbiologicalsensitiveelementssuchasenzymestoacertainspace,butdoesnothinderthefreediffusionoftheanalyte第1題Theresponsetimereflectshowfasttheoutputcharacteristicquantityofthehumiditysensorchangeswiththerelativehumiditywhentherelative(

)changes.ATimeBTemperatureC

SpaceDHumidity第2題Agassensorreferstoadevicethatcanconvert(

)ofthemeasuredgasintoanelectricaloutputthathasacertainrelationshipwithit.ACompositionB

VolumeC

ConcentrationDPressure第3題Thesemiconductorgassensorusesasemiconductorgassensortocontactthegas,causing(

)tochange,therebydetectingthecompositionandconcentrationofaspecificgas.AResistanceofsemiconductor

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

).A

Static

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

).ACurrentBPotentialdifferenceCSurfacechargelayerDDeepcharge第6題Accordingtothenatureofthesensor,thefollowing(

)arephysicalsensors.AGas-sensingelectrodeBIon-selectiveelectrodeC

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