sat2生物试题

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1、SATBiologyE/MSubjectTestJune2012Questions1-3refertothefollowingcellmembranediagram.1.Thismolecularstructureiscomposedoflipidchains.2.Thisstructureisinvolvedinfacilitateddiffusion.3.Thismolecularstructureishydrophilic.4.WhichofthefollowingpairsdoesNOTrepresentacorrectrelat

2、ionship?(A)fat;lipid(B)starch;polysaccharide(C)starch;carbohydrate(D)sugar;carbohydrate(E)enzyme;lipidQuestions5-7refertothefollowingprocesses:(A)proteinsynthesis(B)respiration(C)digestion(D)photosynthesis(E)fermentation5.Theprocessbywhichbothplantsandanimalsobtainenergyf

3、orcellularfunction.6.Theprocessthatallowshigherplantstobeautotrophic(abletomanufacturetheirownfood).7.Theprocessthatleadstotheproductionofethylalcoholorlacticacid.8.Infruitflies,redeyesaredominanttogreeneyes.Inacrossbetweenashort-winged,green-eyedflyandalong-winged,red-ey

4、edfly,theresultswereasfollows:40percentshortwingedandredeyed10percentshortwingedandgreeneyed10percentlongwingedandredeyed40percentlongwingedandgreeneyedWhichofthefollowingreflectsthechromosomemakeupoftheparents?(A)LIRrxLIrr(B)Llrrxllrr(C)LIRrxllrr(D)LLRRxllrr(E)LIRRxllRr9

5、.Aconsensussequenceisassociatedwith________,whileasignalsequenceispartof________.(A)translation,hnRNAs(B)DNA,translation(C)transcription,asnurp(D)hnRNA,asnurp(E)spliceosomes,translationQuestions10-12(A)Smallintestine(B)Largeintestine(C)Stomach(D)Esophagus(E)Mouth10.Struct

6、urewheremostdigestionandabsorptionofnutrientsoccurs11.Structurewherestarchdigestionfirsttakesplace12.StructurewiththelowestpH13.Foodchainsneverconsistofmorethan4or5trophiclevels.Thereasonforthisis(A)energyislostalongthefoodchain(B)therearefewerprimaryconsumersintheworldth

7、ansecondaryconsumers(C)producersarealwaysshownonthebottomofanyfoodchain(D)pioneerorganismscompetewithconsumers(E)alloftheabovearecorrect14.Fromtheleftventricle,bloodflowsintothe(A)pulmonaryartery(B)aorta(C)leftatrium(D)venacava(E)septumQuestions15-17refertothefollowing.A.

8、ArthropodaB.BryozoaC.ChordataD.CnidariaE.Mollusca15.Membersofthiscladehavepharyngealslitsatsomep