B32Transportsystemsinplantsandanimals植物和动物的运输系统

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1、B3.2Transportsystemsinplantsandanimals植物和动物的运输系统6Thisquestionisaboutthebloodsystem・(a)Paulisinvestigatinghispulserate.Hewaitsuntilhehasbeensittingstillfor10minutes.Hethencountsthepulseinhiswrist.Hecounts17pulsesin15seconds.Whatishispulserateperminute?pe

2、rminute[1](b)Paulthenexercisesfortwominutesbyrunningaroundtheschoolfield・Hethensitsdownagainandmeasureshispulserateeveryminute.Afteranotherfiveminuteshispulseratereturnstonormal.HowwouldyouexpectPaul'spulseratetochangewhenheexercisesandthensitsdown?Show

3、youranswerbycompletingthelineonthegraph.pulserateiiiiiiiiii012345678910

4、

5、timeinminutesstartsstopsexerciseexercise[2](c)Yourpulseiscausedbyyourheartbeating・Sometimestheheartdoesnotworkproperlyandhastobetreated・Drawastraightlinetomatcheachheartconditionwi

6、thitscorrecttreatment.Drawtwolinesonly.heartconditiontreatmentartificialreplacementblockedcoronaryarterybypasssurgerydamagedvalves⑵[Total:5]pacemaker9Lookatthepictureofhumanblood.(a)Completethelabelstoshowwhatjobeachpartdoes・Choosefromthislist.releasese

7、nergytransportsoxygentransmitsnerveimpulsescontrolsinfectioniclotsblood(b)Nina〃sbloodgroupisAB.Fivedifferentstudentswereaskedtoexplainwhatthismeans・Thesearetheiranswers.Somearecorrectandsomearenot.Ninahas...…ABantibodiesonherredbloodcells・…noABantibodie

8、sinherplasma・...ABantigensinherplasma.…noABantigensonherredbloodcells.…ABantigensonherredbloodcells・UsetheanswerstohelpyouexplainwhatbeingbloodgroupABmeans.[2](c)Ninahasadoublecirculatorysystem,likeallmammals.Whichofthediagrams,A,B,CorD,showsNina'sdoubl

9、ecirculatorysystem?answer.Explainyouranswer.[2][Total:7]3Thisquestionisaboutplants・(a)Thetableshowssomepartsofaplantandthejobtheydo.Finishthetable.partsofaplantjobtheydoleafporesletincarbondioxideflowerschloroplastscellwalls(b)Lookatthepictureofatree.Th

10、etreeis90metreshighbutwatercanstillreachitsleaves・Writeabouthowwatertravelsthroughthetree.[3](a)Increasinglightintensityincreasestherateofwatermovementthroughaplant.Writedownoneotherenvironmentalchangethatincreasestherateofwaterm