香港理工大学生物试题.docx
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香港理工大学生物试题.docx
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香港理工大学生物试题
SSMSC/2018/Biology
SecondarySchoolMathematics&ScienceCompetition
Biology
Date
:
17thMay,2018(Friday)
Totalno.ofpages
:
24
Timeallowed
:
9:
00-10:
15am(1hour15minutes)
Totalmarks
:
70
Instructions:
1.WriteyourName,SchoolName,Form,DateandCandidateNumberinthespacesprovidedontheM.C.andSectionBStructuredQuestionsAnswerSheetandfilltheappropriateboxes.
2.Whentoldtoopenthisbook,youshouldcheckthatallthequestionsarethere.Lookforthewords‘ENDOFPAPER’afterthelastquestion.
3.ANSWERALLQUESTIONS.
4.DiagramsinthispaperareNOTnecessarilydrawntoscale.
5.ThereareTWOsections,AandBinthisPaper.SectionAconsistsofmultiplechoicequestions.SectionBcontainsstructuredquestions.
SectionA(MultipleChoiceQuestions)
(a)YoushoulduseanHBpenciltomarkallyouranswersontheM.C.AnswerSheet.
(b)Eachquestioncarriesonemark.
(c)YoushouldmarkonlyONEanswerforeachquestion.Ifyoumarkmorethanoneanswer,youwillreceiveNOMARKSforthatquestion.
(d)Nomarkswillbedeductedforwronganswers.
SectionB(StructuredQuestions)
(a)AnswersshouldbewritteninthespaceprovidedontheSectionBAnswerSheet.
Page1
SSMSC/2018/Biology
SectionA:
MultipleChoiceQuestions(55marks)
1.Whichofthefollowingsarethederivativesoffat?
(1)Phospholipid
(2)Steroid
(3)Cholesterol
B.
(1)and
(2)only
C.
(1)and(3)only
D.
(2)and(3)only
E.
(1),
(2)and(3)
2.ThemonomersofDNAandRNAare
A.Glucose
B.Aminoacids
C.Triglycerides
D.Nucleotides
3.Whichofthefollowinglevelsoforganizationaboutlivingthingsandtheirenvironmentinascendingorderiscorrect?
A.Atom,DNA,molecule,organelle,system,cell,organism,species,community,population,ecosystem,ecosphere
B.Atom,cell,molecule,tissue,organ,system,organism,species,population,community,ecosphere,biome
C.Atom,molecule,cell,tissue,organ,system,organism,species,population,community,ecosystem,ecosphere
D.Atom,compound,molecule,cell,tissue,organ,species,organisms,population,community,ecosystem,ecosphere
Page2
SSMSC/2018/Biology
4.Atemporarymountofonionepidermalcellsispreparedfreshlyandobservedunderthelightmicroscope.Aphotomicrographiscapturedandshownbelow:
Onionepidermalcells(x200)
StructureXis
A.anucleus.
B.astarchgrain.
C.avacuole.
D.anairbubble.
Directions:
Questions5and6refertothediagrambelow,whichshowsastructurePfoundinthelongitudinalsectionofadicotyledonousstem:
Page3
SSMSC/2018/Biology
5.WhichofthefollowingarefunctionsofstructureP?
(1)transportofwater
(2)transportofminerals
(3)givesupporttotheplant
B.
(1)and
(2)only
C.
(1)and(3)only
D.
(2)and(3)only
E.
(1),
(2)and(3)
6.WhichofthefollowingisderivedfromstructurePoveraperiodoftime?
A.Cork.
B.Wood.
C.Fruits.
D.Aerialroots.
7.DiagramIshowsanaphidwhichfeedsonphloemsapofplantbyinsertingatubularstructureintothesieveelementofastem.DiagramIIshowsacrosssectionofa
vascularbundleofthedicotyledonousstem.
DiagramIDiagramII
Source:
ShipherWu(photograph)andGee-wayLin(aphidprovision),NationalTaiwanUniversity
WhichpartofthevascularbundleinDiagramIIisthesitewheretheaphidobtainsthesap?
Page4
SSMSC/2018/Biology
Directions:
Questions8and9refertothefollowingsituation:
Marynoticedacosmeticadvertisingstatement‘RepairSerumXcanprotecttheskinfromwrinkledevelopment’andshedoubtedit.Thenshecarriedoutascientificinvestigationwhichaimedtostudyiftheadvertisingstatementiscorrectornot.Shemadeahypothesisthat‘RepairSerumXcanpreventwrinkledevelopmentonskin’,followedbyconstructingthefollowingsetupPandQ:
8.Assumingthatallcontrolvariablesarethesame,whatisthedependentvariableandwhichsetupisthecontrolintheinvestigation?
Dependentvariable
Controlsetup
A.Pig’sskinsmearedwithRepairSerumXornot
P
B.
Pig’sskinsmearedwithRepairSerumXornot
Q
C.
Wrinklesappearornot
P
D.
Wrinklesappearornot
Q
9.IfwrinkledoesnotappearonbothskinsinsetupPandQ,whatconclusioncanbemade?
A.RepairSerumXcanpreventwrinkledevelopmentonskin.
B.RepairSerumXisnotneededforthepreventionofwrinkledevelopmentonskin.
C.Thehypothesisthat‘RepairSerumXcanpreventwrinkledevelopmentonskin’issupported.
D.Noconclusioncanbemade.
Page5
SSMSC/2018/Biology
Directions:
Questions10and11refertothediagrambelow,whichshowsafluid-mosaicmodelofcellmembrane:
10.WhichofthefollowingisnotapropertyofA?
A.Thetailregionisnon-polar.
B.Itallowsions(suchassodiumions)
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