免疫主题英语试题及参考答案

免疫主题英语试题及参考答案考试时间：______分钟总分：______分姓名：______1.Whichofthefollowingisaprimarylymphoidorgan?A.SpleenB.LymphnodeC.ThymusD.Mucosa-associatedlymphoidtissue(MALT)2.WhichofthefollowingisNOTacharacteristicofadaptiveimmunity?A.SpecificityB.MemoryC.RapidresponseD.Diversity3.Cytokinesandchemokinesarebothtypesofsignalingmolecules,butchemokinesspecificallyregulate:A.AntibodyproductionB.CellmigrationC.ComplementactivationD.Antigenpresentation4.Theprocessbywhichantibodiescoatpathogenstoenhancephagocytosisiscalled:A.OpsonizationB.NeutralizationC.ComplementfixationD.Agglutination5.Whichofthefollowingcellsisresponsibleforcytotoxickillingofvirus-infectedcells?A.HelperTcellsB.BcellsC.CytotoxicTcellsD.Macrophages6.Themajorantibodyclassfoundinbloodserumis:A.IgAB.IgDC.IgED.IgG7.Immunetolerancerefersto:A.TheabilitytorecognizeforeignantigensB.Thefailuretorespondtoself-antigensC.TherapidresponsetopathogensD.Theproductionofmemorycells8.Whichofthefollowingisakeycomponentoftheinnateimmunesystem?A.MemoryBcellsB.DendriticcellsC.Naturalkiller(NK)cellsD.Plasmacells9.TheMHCmoleculespresentantigensto:A.BcellsB.MacrophagesC.TcellsD.Neutrophils10.Whichofthefollowingisanexampleofavaccinethatusesaweakenedpathogen?A.mRNAvaccineB.InactivatedvaccineC.SubunitvaccineD.DNAvaccine11.Theprocessbywhichimmunecellsengulfanddigestpathogensiscalled:_________________________12.Antibodiesareproducedbyplasmacellsderivedfrom:_________________________13.Thecytokinethatinterfereswithviralreplicationis:_________________________14.ThemoleculeonTcellsthatbindstoMHCclassIIis:_________________________15.Thebranchofimmunologythatdealswithimmuneresponsestotumorsis:_________________________16.TheprocessbywhichBcellsswitchantibodyclassiscalled:_________________________17.ThereceptoronTcellsthatrecognizesantigenspresentedbyMHCclassIis:_________________________18.ThetypeofhypersensitivityreactionmediatedbyIgEantibodiesis:_________________________19.Thecelltypethatactsasaprofessionalantigen-presentingcellandbridgesinnateandadaptiveimmunityis:_________________________20.Thetermforthefailureoftheimmunesystemtodistinguishselffromnon-selfis:_________________________21.Define"Immunologicaltolerance"inEnglish.22.Define"Antibody-dependentcellularcytotoxicity(ADCC)"inEnglish.23.Define"Complementsystem"inEnglish.24.Define"Toll-likereceptors(TLRs)"inEnglish.25.Define"Autoimmunity"inEnglish.26.Compareandcontrasthumoralimmunityandcell-mediatedimmunity.Includeeffectorcells,targets,andkeymoleculesinyouranswer.27.DescribetheprocessofantibodyproductionfromBcellactivationtoantibodysecretion.IncludetherolesofhelperTcellsandplasmacells.28.Readthefollowingexcerptandanswerthequestions:"CAR-Ttherapyinvolvesgeneticallymodifyingapatient'sTcellstoexpresschimericantigenreceptors(CARs)thattargettumor-specificantigens.ThesemodifiedTcellsaretheninfusedbackintothepatienttorecognizeanddestroycancercells.Clinicaltrialshaveshownefficacyintreatingcertainleukemias,butchallengesremaininsolidtumorsduetotheimmunosuppressivetumormicroenvironment."Question1:WhatisthemechanismofCAR-Ttherapy?Question2:WhatisachallengeinusingCAR-Ttherapyforsolidtumors?29.Writeabriefabstract(100-120words)foranexperimenton"Theroleofgutmicrobiotainmodulatingimmuneresponses".Includebackground,methods,keyresults,andconclusion.试卷答案1.答案：C解析：胸腺是初级淋巴器官，负责T细胞成熟；脾脏、淋巴结和MALT是次级淋巴器官，参与免疫应答。2.答案：C解析：适应性免疫的特性包括特异性、记忆性和多样性，但快速响应是固有免疫的特性，而非适应性免疫。3.答案：B解析：趋化因子（chemokines）专门调节细胞迁移，而细胞因子（cytokines）更广泛，包括免疫调节和炎症反应。4.答案：A解析：调理作用（opsonization）是抗体包裹病原体以增强吞噬细胞识别和吞噬的过程。5.答案：C解析：细胞毒性T细胞（cytotoxicTcells）直接杀伤病毒感染的细胞，而辅助T细胞、B细胞和巨噬细胞功能不同。6.答案：D解析：IgG是血液中最主要的抗体类别，约占血清抗体的75-80%，参与中和病原体和调理作用。7.答案：B解析：免疫耐受是免疫系统对自身抗原不反应的状态，避免自身免疫病，而非识别外来抗原或产生记忆细胞。8.答案：C解析：自然杀伤细胞（NKcells）是固有免疫系统的一部分，无需预先致敏即可杀伤靶细胞；记忆B细胞、树突状细胞和浆细胞属于适应性免疫。9.答案：C解析：MHC分子将抗原肽呈递给T细胞，启动T细胞介导的免疫应答；B细胞、巨噬细胞和中性粒细胞不直接通过MHC识别抗原。10.答案：B解析：灭活疫苗使用减弱的病原体（如流感疫苗）；mRNA疫苗、亚单位疫苗和DNA疫苗使用非病原体成分。11.答案：Phagocytosis解析：吞噬作用是免疫细胞（如巨噬细胞）通过内吞作用吞噬并消化病原体的过程，是固有免疫的核心机制。12.答案：Bcells解析：浆细胞由B细胞分化而来，负责分泌抗体；B细胞识别抗原后，在辅助T细胞帮助下分化为浆细胞。13.答案：Interferon解析：干扰素（如IFN-α/β）是抑制病毒复制的细胞因子，由感染细胞产生，诱导抗病毒状态。14.答案：CD4解析：CD4分子是辅助T细胞表面的共受体，结合MHCII类分子，帮助T细胞识别抗原呈递。15.答案：Tumorimmunology解析：肿瘤免疫学是研究免疫系统识别和攻击肿瘤的分支，涉及免疫监视和免疫治疗。16.答案：Classswitching解析：类别转换是B细胞在辅助T细胞和细胞因子作用下，改变抗体类别（如IgM到IgG）的过程，增强免疫应答。17.答案：TCR解析：T细胞受体（TCR）是T细胞表面的分子，识别由MHCI类分子呈递的抗原肽，启动细胞免疫应答。18.答案：TypeIhypersensitivity解析：I型超敏反应由IgE抗体介导，导致肥大细胞脱颗粒，引发速发型过敏反应（如花粉症）。19.答案：Dendriticcells解析：树突状细胞是专业的抗原呈递细胞，捕获抗原并呈递给T细胞，连接固有和适应性免疫。20.答案：Autoimmunity解析：自身免疫是免疫系统错误攻击自身组织的状态，导致自身免疫疾病（如类风湿关节炎）。21.答案：Immunologicaltoleranceisthestateinwhichtheimmunesystemdoesnotmountanimmuneresponseagainstself-antigens,preventingautoimmunediseases.解析：定义免疫耐受的核心是避免对自身抗原的反应，涉及中枢耐受（胸腺选择）和外周耐受（调节T细胞）机制。22.答案：Antibody-dependentcellularcytotoxicity(ADCC)isaprocesswhereantibodiesbindtotargetcells(e.g.,infectedcells),andeffectorcells(e.g.,NKcells)recognizetheantibodiesandkillthetargetcells.解析：ADCC依赖抗体（如IgG）结合靶细胞表面抗原，效应细胞通过Fc受体识别抗体并释放细胞毒性分子。23.答案：Thecomplementsystemisagroupofproteinsinthebloodthatenhanceimmuneresponses,suchaspathogenopsonization,inflammation,anddirectlysisofpathogens.解析：补体系统包括30多种蛋白质，通过级联反应促进吞噬、炎症和病原体裂解，是固有免疫的关键组分。24.答案：Toll-likereceptors(TLRs)arepatternrecognitionreceptorsonimmunecellsthatrecognizepathogen-associatedmolecularpatterns(PAMPs),initiatinginnateimmuneresponses.解析：TLRs识别病原体相关分子模式（如细菌LPS），激活信号通路，导致炎症细胞因子释放和免疫细胞活化。25.答案：Autoimmunityisaconditionwheretheimmunesystemmistakenlyattacksthebody'sowntissues,leadingtodiseaseslikerheumatoidarthritisorlupus.解析：自身免疫涉及免疫耐受失败，导致自身反应性T/B细胞活化，攻击自身组织，引发慢性炎症。26.答案：HumoralimmunityinvolvesBcellsproducingantibodiesthattargetextracellularpathogens,witheffectormoleculeslikeantibodies.Cell-mediatedimmunityinvolvesTcells(CD8+cytotoxic,CD4+helper)targetingintracellularpathogens,witheffectormoleculeslikecytokinesandperforin.解析：对比体液免疫（B细胞、抗体、胞外病原体）和细胞免疫（T细胞、细胞因子、胞内病原体），强调效应细胞和分子的差异。27.答案：BcellactivationoccurswhenBcellsbindantigensandreceivehelpfromhelperTcells.ActivatedBcellsundergoclassswitchinganddifferentiateintoplasmacells,whichsecreteantibodies.HelperTcellsprovid