2026年考研英语生物专业基础通关试卷

2026年考研英语生物专业基础通关试卷考试时间：120分钟满分：100分一、单选题1.Intheprocessofphotosynthesis,whichofthefollowingistheprimarypigmentresponsibleforcapturinglightenergy?A.ChlorophyllAB.ChlorophyllBC.CarotenoidsD.Phycocyanin2.Whichofthefollowingisakeyenzymeintheglycolysispathway?A.PhosphofructokinaseB.PyruvatekinaseC.HexokinaseD.Enolase3.WhichofthefollowingisatypeofRNAinvolvedinthetranslationprocess?A.tRNAB.rRNAC.mRNAD.snRNA4.InwhichofthefollowingorganellesarephotosynthesisandtheCalvincycleprimarilylocated?A.NucleusB.MitochondriaC.ChloroplastsD.Endoplasmicreticulum5.Whichofthefollowingisatypeofsecondarymetabolisminplantsthatisinvolvedindefenseagainstherbivores?A.TerpenoidsB.PhenolicsC.AlkaloidsD.Steroids二、填空题1.Theprocessofphotosynthesisinplantsinvolvesconvertinglightenergyintochemicalenergy,whichisstoredintheformof______;thischemicalenergyisthenusedtoproduceglucoseandoxygen.2.DNAreplicationisacriticalprocessincelldivision,wherethe______oftheDNAmoleculeiscopiedtoensurethateachnewcellreceivesacompletesetofgeneticinformation.3.Inthecentraldogmaofmolecularbiology,theflowofgeneticinformationisfromDNAtoRNAto______,whichultimatelyleadstothesynthesisofproteins.4.Themitochondriaareoftenreferredtoasthe'powerhouse'ofthecellbecausetheyareresponsibleforproducing______,whichisessentialforcellularprocesses.5.TheconceptofevolutionbynaturalselectionwasproposedbyCharlesDarwin,whosuggestedthatorganismswithtraitsthatare______tendtosurviveandreproducemoresuccessfully,passingthosetraitstotheiroffspring.三、完形填空1.Inthefieldofmolecularbiology,DNAreplicationisacrucialprocess.TheprocessbeginswiththeseparationofthetwostrandsoftheDNAmolecule.Theenzyme_______isresponsibleforthisinitialstep.A.polymeraseB.helicaseC.ligaseD.kinase2.Proteinsareessentialforthestructureandfunctionofcells.Theprocessofproteinsynthesisinvolvestwomainsteps:transcriptionandtranslation.Duringtranscription,theDNAsequenceiscopiedintoa_______.A.ribosomeB.mRNAC.tRNAD.rRNA3.Cellsignalingisacomplexprocessbywhichcellscommunicatewitheachother.Oneofthekeycomponentsofcellsignalingisthe_______,whichisamoleculethatcarriesthesignalfromthecellthatproducesittothecellthatreceivesit.A.receptorB.ligandC.enzymeD.ionchannel4.Photosynthesisistheprocessbywhichgreenplantsandotherorganismsusesunlighttosynthesizefoods.Duringphotosynthesis,carbondioxideandwaterareconvertedintoglucoseandoxygen.Theoverallchemicalequationforphotosynthesisis:6CO2+6H2O+lightenergy→C6H12O6+6O2.Thelightenergyisabsorbedbythepigment_______.A.chlorophyllB.carotenoidC.anthocyaninD.phycocyanin5.Geneticengineeringhasrevolutionizedthefieldofbiotechnology.OneofthekeytechniquesingeneticengineeringisrecombinantDNAtechnology,whichinvolvestheinsertionofadesiredgeneintoavector.ThemostcommonlyusedvectorinrecombinantDNAtechnologyisthe_______.A.plasmidB.virusC.chromosomalDNAD.mitochondria四、阅读理解1.Thearticlediscussestheroleofmitochondriaincellularenergyproduction.Whichofthefollowingstatementsistrueregardingtheprocessofoxidativephosphorylation?A.Itoccursinthecytoplasm.B.Itisdependentontheelectrontransportchain.C.Itisananaerobicprocess.D.Itdoesnotrequireoxygen.2.WhichofthefollowingisaprimaryfunctionofDNAinacell?A.ProteinsynthesisB.EnergyproductionC.TransportofnutrientsD.Storageofgeneticinformation3.Thearticleexplainstheconceptofhomeostasisinbiologicalsystems.Whichofthefollowingisanexampleofahomeostaticmechanism?A.ThereleaseofinsulininresponsetohighbloodsugarlevelsB.TheprocessofphotosynthesisinplantsC.ThecontractionofamuscleinresponsetoastimulusD.Thedigestionoffoodinthestomach4.Whichofthefollowingisacharacteristicofaeukaryoticcellthatdistinguishesitfromaprokaryoticcell?A.PresenceofacellwallB.PresenceofanucleusC.PresenceofchloroplastsD.Presenceofmitochondria5.Thearticledescribestheprocessoftranscriptioningeneexpression.WhichofthefollowingstatementsistrueregardingtheroleofRNApolymerase?A.ItbreaksdownDNAintonucleotides.B.ItsynthesizesDNAfromRNA.C.ItreadstheDNAtemplateandsynthesizesRNA.D.ItrepairsdamagedDNA.五、简答题1.社区近期因垃圾分类政策执行不力，引发居民不满。一位居民在社区会议上提出，部分垃圾桶未按规定分类，导致垃圾混装，影响环境。你作为社区工作人员，应该如何处理这个问题？2.某高校生物实验室在实验过程中发现一名学生未按操作规程处理实验废弃物，存在安全隐患。你作为实验室管理员，应如何处理此事？参考答案单选题1.AChlorophyllAistheprimarypigmentthatcaptureslightenergyduringphotosynthesis.2.A3.AtRNA(transferRNA)isatypeofRNAthatcarriesaminoacidstotheribosomeduringtranslation.4.C5.CAlkaloidsareatypeofsecondarymetabolisminplantsthatcanbeinvolvedindefenseagainstherbivores.填空题1.carbohydrates；glucose；oxygenTheanswer'carbohydrates'istheoveralltermforthechemicalenergystorageform.'Glucose'isaspecifictypeofcarbohydrate,and'oxygen'isabyproductoftheprocess.2.sequence；doublehelixstructure3.protein；aminoacidsTheanswer'protein'istheendproductofthegeneticinformationflow,and'aminoacids'arethebuildingblocksofproteins.4.TP；energy5.favourable；adaptiveTheanswer'favourable'meanstraitsthathelpanorganismsurviveandreproduce.'Adaptive'isanothertermfor'favourable'thatisoftenusedinthecontextofevolutionarybiology.完形填空1.略HelicaseistheenzymethatunwindstheDNAhelix,separatingthetwostrandstoallowreplication.2.略3.略Ligandsaremoleculesthatbindtoreceptorsonthesurfaceofcells,initiatingasignalingprocess.4.略5.略Plasmidsaresmall,circularDNAmoleculesthatcanbeeasilymanipulatedandareoftenusedasvectorsingeneticengineering.阅读理解1.BOxidativephosphorylationisaprocessthatoccursinth