Kertas 3, percubaan spm 2008, terengganu

SUI,IT
455|/2
Biologi
Arrgnst2008
2 % j a m
JABATANPELA.TARANTERENG(;ANI]
PEPERIKSAANPERCUBAAN 2OO8
SI.IILPELA.IARANMAI,AYSIA
SI<EMA.IAWAI'AN
BIOLOGI
4551
KERTAS1,2&3
Kertas.iawapanini mengandungihalarnanbercctak
www.banksoalanspm.com

TRIAL 2OO8
SC}TIIM[],BIOLOGY PAPF],III
NUM. ANSWER ANSWtili
('
T I
('
C
D
B
(

QUESITON NO. I
Itenr Schcme I mo.t., It,u,rt
A-blctogivethr"" ain"ii'rttypes,'iietts
I I
A: epiclerrniscell//epidermalcell I t I
I): palisadecell//mesophyllpalisadecell I t ]
C:guardcell I t I I
Able to statethe ftrnctionfor eachcell
B: containschloroplastto carryoutphotosynthesis j I | "
C: controlstheopeninganclclosureol'storra
I
t
|
'
Abd io ";<pl"l;ad"pti"ef""r*ei' of thecCllin ti.rsuc | |
I) in transportationsubstancein plant.
I I
Xylem: I r i
I": vesselxylem is long,hollowandcontinuous//no I ]
protoplasmin thevessels I t ]
ll: to allow waterflowscontinuouslyliorrrrool to tlrc I I
leaves//to obstructtheflow of water I i
F'loem: I
F: sievetubeis cylindricaltubecontaincytoplasrnic I
which areconnectedto othercell throughsieveplate// | |
companioncell has(nucleus,cytoplasrnand) |
mitochondrion I t
Il: to carryglucosefrom lcavesto othcrofplant// give I
energyto sievctube
I
Ableto cxplaina.lua,lroge,''1-s)..ternE anJI for i
terrestrialplant I
Fl: SystertrIr coltsislof stcrn/leavcs/huds/flr,wcrs I
andfruirs I t ]
El: actassupportsystemfor plarrtby holdingthe | ]
leavesuprighV/lraps maximum sunlightfor I I
photosynthesis//producemoreleaves//0owerto I l
producemorefruit// lmit for reproducliorrplocess I t ]
12:SystemF'consistofroot I t ]
E2: act assuppoftsystemfor plant-//absorbwateranil | ]
mineralsalt
I t I o
I(a)
(1,
(c)
(d)
'f()t'Al,
I l2 M

Able to statethe tlefencernechanismin A and l|
A: phagocytes
B: lymphocytes
Able to describetheprocessn
-Phagocytesrnovetowardsantigens/ pathogensusing
pseudopodium
-Phagocytessun'ouncltheantigen/ pathogen
-Antigen/ pathogenwrappcdin vacuoleancl
hydrolysedby hydrolyticenzyrne
-destroyedantigen/ pathogenis removedfrornthe
phagocyte
Able to give llrenteaningofantibody
-is a proteinproducedby lymphocytesin responsetcr
thepresenceof an antigen
Able to explainthenecessityfor secondin_jection
requiredby individualsX andY
-to booster/ stimulateproduction/ releasedof thc
antibody// to increaseproductionof antibody
-oango against//destroytheantigen/preventdiseascs
Ablc to statetlvo diflerencesbetweenintntunityof X
andY
I . IndividuX, is long lastingor permanentwhereas
Individu Y is shortlastingaortemporary
2.lndividuX is slowresponsebutindividuY
immediateresponse.
3.lndividu X necdlyrnphocytesto produceantibody,
whereasindividuY is readyrnadeantibocly.
Able to explainhow to saveAli's lile
-injectedby antiserumcontaining antibotly/antibody
throughartificialpassiveimmunity
-reaclymadeantibodywill destroy/nuctralise
antigen/venom
TOTAL
Ilem
Nunt
:t(a)(i)
(a)(ii)
(cl
ScoringCritcria Mark
I l n
l n r
I m
I r n
l n r
lnr
l m
lnr
2nl
(b)
rlaks
J m
Max.
2n
Any 3
point
Any 2
points
l r nl n r
2nr
(d)
lrn
1nr
l m
lrn 2rn
12nr
llcnra rl<

No
(14
(aXi)
(a)(ii)
Markins Criteria
Primary growth
- Apical meristemdividedaotivelythroughntitosisto lbrnta
newcells
- Cellsbecomeenlargement/ elongationthroughthe
vacuolationanclformationof cy'toplasm,increasingin sizc
- Cellsundergospecialisationto form thedillerentprimary
tissuelike epidermis,cortex,xylemandphloem.
Mark
I
I
I
I
4
(bxi)
(ii)
TissueV : Phloem
'l'issue
W : Xylem
'lissue
V transportphotosynthesisproduotlrom leavcto all otlterpart
ofthe plantswhile tissueW transporlwaterantlnrincralssaltand
givemechanicalsupportto theplant
I
I
I
l
(c)(i)
(ii)
Vascularcambiunr/ lateralmerislcrn
- Vascularcarnbiumdividedactively(rnitosis)radiallyto fornr
carnbiumring / intervascularcanrbiunt
- Cambiurncell dividetangentiallyto producetwo layersof
cell, innerlayerwill form secondaryxylem ancloutcrlayer
will form secondaryphloem
- 'fl.re
prinraryxylem will bepushtowardsthepith while the
primaryphloemwill bepushtowardtheepidermis
I
I
I
I
lny
2
)
I
(d) l. To increasethesupport
- Increasethediameter/ circumfcreuccof stenrfbr givea
mechanicalsupport
- 'I'o
incrcasestabilitywhentheplantheightis increasing
OR
2. To increasethetransportationtissue
- To increasemorenew phloemtissueandxylenttissue
- To replacedtheold anddarnagedxylemtissueandphlocnt
tissue
),
TOTAI, l 2

SCORING CIU'I'EIIIA
Ahle to slate nante of organ Y
Answer:
OrganY: Pancreas
Able to stotethe honnone secretedhy Z
Answer:
FlomroneX: Insulin
HonnoneY: Clucagons
Able to exploin the regulotion of glucosecontenl in
hunnn blootl.
suggestedauswer:
PI : (p-cells)secretesinsulin
I'2: to convertexcessglucoseinto glycogen(to be storcd
in liver)
P3:(o- cell) secretesglucagons
P4:to convertglycogeninto glucose)
Any 3 l"s
Able to statetlte diseose
Answer:
Diabetesmelitusi hYPerglYsemia
Able to suggesttlre vtaJtto aroid theproblen
Suggesledanswer:
lessintakeof foodcontainsugarandcarbohydratesin
thediet
Ahle to corrective ntechonisrrtof Q
Suggestedansver:
F':PancreasreleasellormoneY / glucagons
Ill : convertglycogeninto glucose
E2:slow down tl.reoxidationof glucose
Ahle to explairr the role of Y in digestingfats
Suggestedansv'er:
Fl : organZ / pancreassecretcsnancreatlc.luice/
lipase
Iil: lipase hydrolysesfatsinto fattyaoiclsand
glycerol
ITlM
aXi)
aXii)
h)
(c)(ii)
MAIIKS
M{!l<
I
'I'O'IAI,
(d)
I
I
I
I
I
Total
2
12

No. MarkingClriteria
Able to statetwo forms nitrogcnouscornpounds
Suggstedanswer :
- anrrnoniumionsand rritrate!p4q.
Able to explainhorva deficiencyof K in thesoil afleotsplant
growlh.
Sr.rggestedanswer
I RoothairsabsorblessK/nitrates/nitrogen
// lessK/nitrates/nitrogenis availableto beabsolbedby plants.
2. Lesschlorophyll/ proteinis synthesized.
3 Rateof photosynthesisdecreases.
4 Plantgrowth is slow/ retarded/stunted
Able to explain the role ofthe nricroorganisnrin nitrogen cycle
Suggestedanswer:
nitrogenfixing bacteriaoanoonvertatmosphcric
nitrogenthroughnitrogenfixationprocess.
for exanrplesnostocsp(foundlreelyin thesoil)//
Rhizobiumsp (livesin tlrenodulesof legunrinous
plants)
(They) fix atrnosphericnitrogcnandconvcrtit into
amrnoniumcornpounds
Nitrate,aretakenup by therootsofplantsand
convertedinto proteins.
(When)animalseatstheplants,theorganicnitrogenis
transferredinto thebodyof theanimal.
(when)animalsdie,decornpositionproducesarnmonia
that canbe convertedinto nitritesandnitratesby
nitrifyins bacteria.//anrmoniais convertedinto nitrite
by nitrosomonasspwhile nitritesareconverteclinto
nitratesby nitrobactersp.
'I'he
denitrifyingbacteriaconvertnitratesbackinto
atmosphericnitrogento completethenitrogencyclc.
Able to explainthc roleof usefulmicroorganisrn
Suggestedanswer:
(i) in thealirnentarycanalof termites
- termitesfeedmainlyon woodwhichcontaincellulose
Marks
6(a)i
I
I
I
I
6(a)ii
I
'I
olal I0 nr
(b)i

(ii)
Prrrtrrzoa(strclras t rir'lnnyn4tiiiilryric prc'errrirrthc
alimentarycarralof thetermites.
They producecellulasewhichdigestccllulose
'fermites
unableto producecellulaselhemselvcs
in thedigestivesystenrin humans
Usefulsymbioticbacteriaarefoundin thchr.rmancolon
Theysynthesisevitamintsl2 andvitanrinK.
A deficiencyin vitaminB[2 canleadto anaemia//
(while) vitamin K is essentialfor'lrloodclotting
(iii) in tlecornpositionprocess
composerssuchasbacteriaandfungisccrctedigestive
enzymeto breakclownorganicmatterantlaninralswaste
into simplemolecules(suchascarbondioxide,water
andammoniumcompounds.
Thesemioroorganismcanreturnthenutrientcontain
within therernainof organicmatterto theatntosphcrc,
soil andwater
Withoutthem,thesoil wouldbecomelessfertile// no
longersustainplantlife
'l
otal I0 nr
Item Scheme Marks
-I'otal
7(a)
Ahle lo descrihelhe lransmissit:utoJnerveinpul.rc.s
acro.fssynap,te
. Whenan impulsesarrivcsin theaxonterntinal
. Stimulates(synaptic)vesiclesto movetowardsand
bind with thepresynapticmembrane
. The vesiclesfuse/ releasetheneurotransmitterinto
thesynapse
. I'heneurotransmittermoleoulesacrossthesynapse
to thedendriteofanotherneurone
. Stimulatedto triggera new impulseswhichtravels
alongtheneurone
I
I
I
I
1
Max4
7(b)
Able to explainlhe.tituoliongiven.
FI - P is afferentneurollewhichtransmitsnerve I
6

t0
E.l -
h 2 -
F 2 -
I I -
ra2-
impulsefrornthereceptorsto theintcntcut-one.
If I' damaged,impulse frorn rcccptor calllot
be transferedto the interneurone.
(As a result),individualn cannotfeclanypain
R is effererrlncurtrtrewltichtransnrilsrcrve
impulsefronr interneuroneto theeffector
If It damaged,impulsefrom interneurone
cannot be transferedto thc effector
(As a result),individualA cannolwithdrawthc
fingeri/ pull thehandawaylrom thepointed
needle
Able to explain the di/ferencesbelu,eenrefler ort: in
lwo Diagrturt
DiaeramT(bXi) I)iaeram7(bXii)
F I Kneejerk reflcx
Withdrawfingerlionr a
slrarnneedlereflcx
E I
Leg swingslorward// knee.jcrkwhilethelrancl
is wilhdrawnftom thesharoneedle
F2
lnvolvedaffercnt
andefferent
neuron/twotypes
Involvedaffercnt,
interneuroneand
efferentneuron/three
tvnesof ncurone
E,l
E2
E3
F.4
Ft5
- Receptordetectthestimulusandtriggersa
nerveimpulse
- Affercnt neuronecarriesimpulsefrom
receptorto thespinalcord
- Synapeswith theefferentneurone(in grey
matter)/ synapeswith intemeuroneand
sinapsewith theefferentneurone(in grcy
matter)
- Ilfferentncuronecarriesinrpulselrom spinal
cord to effcctor
- stinulatesthequadriceps/bisepsmttsclcto
contract
F3
Produceresponse
laster
Produceresprrnsefast
E I
Involvedonesynapsein diagram7(b)(i)while
two synapsein diagrant7(b)(ii)

8 (b)
t2
Able to describepollinationleatlsto theforntationo['
fruit and seedin a fiowering plant (angiospcrnrs).
Irl- Pollengrainshavebeenreleasedlrom theantherto the
stigrnafor pollinaliorrby insectsor wind
F2- 1he sugarsolutiorr(sucrose)secretedby thestignra
stimulatesthe pollengrainto gernrinateandforrna pollen
tube
F3-
'I'he
pollentubegrowstlownlhestyletowardstheovulc
F4- The generativerrucleusdividesby nritosisto forrntwo
nralegametenuclei
F5- l'he rnalegantetenucleimovedownthepollenlubc led
by thetubenucleus
116-Whenthe polletrtubereachestheovary,it penetratcs
thc ovulethroughthe micropyle
F7-
'Ihe
tubenucleusdegenerales,leavirrga clearpassage
for thenralenucleito entertheembryosac
18- Doublefertilizationoccursin theovule. Onenrale
nucleusluseswith theeggnuclcusto form a diploid
zygole(2t
F9- l heothernralenuclcusfuseswith thetwo polarnuclei
to form a triploid nucleus(3n)
I:l0- (After fertilization),thetriploidnucleusdivides
rapidlyby mitosisto formsanendosperntarrdz_ygote
dividesby rnitosisdevelopsintosuspensorandembryo.
Fl l- Theovuledevelopsintoa seedwhiletheovary
enlargesanddevelopsinto a fruit
Max
l0 nrarks

CI{I'I'I]RINMAIIKING
Able to describethe condition of the river and
explainlhe effectinto aquaiicorganisms
Samnleanswer
Conditionof theriver is tl.reresultof
Eutrophication
causedby nitratesfrom the lactoriesleachinto
theriver
(causedby) leachingoinitrates/ phosphates
from pahnoil eslate
excessnutrientsencouragestherapidgrowthol'
algae/ algaebloonr
algaegrow fasterthantheirconsunres,somauy
die (withoutbeingconsunredfonn organic
matter)
algaecoveredthesurfaceof theriver
restrictstheperretralionof light into watercauscs
therateof photosynthesisin aquaticplants
reduced/ aquati0plantdie
waterpollutioncausedby sewage/ domestic
waste/ humanfaeces/ gabbagefronrrubbish
dun.rpsfrom rcsidentialarea
river containsa lot oforganicmatter
theclecayingorganiomatteris brokendownby
decomposingmicroorganism/ aerobicbacteria
lncreasingin theBOD resultsin a depletionof
oxygen// reductionin theanrountof dissolve
oxygenin the river
Imbalanceto theaquaticfoodweb
(1helow lcvel of oxygendissolve)kills aquatic
organisrnlike lreshwatershrimps/ mayfly
nympl.rs
Pl0 : If theoxygenlevelcontinuesto dropanaerobic
baoteriawill grow andreleasetoxiogases/
, hydrogensulphide/ kill fishI tuhifexworrns/
sludgewormsappear
F I
P 1
lr2
P3
Ir4
P5
P6
t,-J
P9
F2
P8
P6
l'7
l 3
No
Il'uM
MARKS
e(a)
Any 2 lr and
any 8 [)

t4
Able tojustily tlreeflectsol unplanneddcveloytmcnt
,ampleun.sv,er
F I
P I
P2
P3
P4
l' .1.
P5
P6
P7
Pti
lndustries/ factories/ vehiclccontributcto air
pollution
smoke/ finc solidparliclescancausercspiratory
problem
oxidesofnitrogen/ sulphurdioxidedissolvein
rainto produceacidrain
(acidrain)causingthesoil becorneacidic/
unsuitablefor cultivationof crops/ leachingof
mineral/ corrosionof r.netal
IncreaseCarbondioxidein atnospherecauses
lhegrecnhouseelfect/ globalwarrning
Industrial/ domestic/ agriculturalactivities
producewasteto contributewaterpollution
Agrochemical/ pcsticidesi insecticidesusedby
larmerflow into thc river/ lcadto thepoisoning
of aquatioorganism
Agriculturalrun-ofl'scontainexcessnitrates/
pltosphatesleadto eutrophication
(eulrophication)causestheBOD valuewill
increasethusrnayharmthc aquaticorganisnrs
Ilflluentslrom electronicsfactoriescontain
heavymetals/ mercury/ cadmiumkill the
aqr.raticorganism/ disturblood ohain
Dischargedofhot waterfrom industrics/ glass
huildingcauseIherrnaI polluliol
lncreasethewatertemperaturcin therivct'
causingdiedaquatioorganismrs/ increasetlre
atmosphcreternperature
Mustlrave
3 I andany
7 P

2
I
n ble to slatcany onc o1'theaboveobscrvalion
correctlyantlonc icleaofobservation
Able to slale lwo icleasol'llreaboveobservalions
correclry
o Not ablekr giveanyresponseor wrongrespolrse
Kl!0604- Making inference(t))(ii)
l Ableto stalellvopossibleinfcrcncelor cach
observation
Sarnpleanswer
l. StudentA produceslessurinebecauseless
waterfrombloodcapillarycarrbereabsorhed
intothetubuleof kidney
2. StudentD producesnroreurincbecausetnore
waterfronrbloodcapillarycarrbereabsorbed
intolhelubuletlrfkidney
3. Shrdenln prodrrceslessurinethanstudent
B/C/Dbecauseinsidethebloodcapillaryof
studentA, lesswatercanbereabsorbedinlo
thetubuleof kidneycompareto thestudent
tlc./t)
2 Allle to state any one possibleinferettcelbr caclt
observationarrd orreinlerencethatlcssacc:urate
I Ableto slatetwo inferencesbutIessaccurate
0 Nol lhle lo gire an1 tr's;rr'ltscor $rottP rep(ttc

(c.l K l l l l 6 l l ) C o n l r o l l i r r gv r r i r r h l e s
C'()nslant
v a r i a b l e :
n ccepled
any suilable
answer
l n bleto stateany,5-6itemsfrornthetable
ffifiit"d I
lt;i,iti,rnill Ivariable I lJsed tlifferentvolrrtle of wirter I
V , ' l r r 1 r e , ' [
| i l l r t k eI ' 1r ' a r ' l rs l r r r l c r r ll . r r rl t : r s I
I
uater irrtrkc
I
t0onr1.21tn,,,t.l0Orrrlarrrll00rrl)
I
L J ]
llgsprrndirrgI I
rariahle I Mersrrrcandrccordllrcrolrrrrrc
I
i V<'lrrrrrcol' | ,rirrrineprrrdrrceh1usingrr I
I trrincnrodrrccI rncasurir[cylindcr I
Iti,nrtarrt I
-
I
I variable I lrixedthetirncaboulJ0 minules I
I Time (before I beforecollectingtheurinc I
I collecting I produccdby eachsluclent I
]
urine)
| I
l l
2 n hlc l(' slalcarry3-4 itc||rslrurrrllreub,'rr'
Ableto stateany2 itemsliom tlrcabove
Nol able1ogivealryrcsporrseor wrongrespol'tse0
(d) Kll0(rl | - Statinga hypolhesis
3 Ableto writea oolnpletehypothesisstatement
showingtherelationshipbetweentnanipulalcd
variableandrcspondingvariablecorreclly.
Pl = rnanipulatedvariable
l'2 = respondingvariable
U = Link
Sampleanswer:
1hehigherthevolurneof u,alerinlake.thehigherthe
volunteof urineproduced.
l) I ()lunrc
ol water
intirkc
lt2 volunrc
ol urine
lrooLlccu
I I
rclalionship
* wrong
hypothesis
was acceptedr

2 Ahle kr write any trvo liom the above
Pl andI'2 // lll andll l/ P2andll
Sarnpleanswer:
'Ihe
differert volumeof waler intakc.thc
tliffcrcrrlvolrrrneof rrrincprodLrced
Able lo write any one liorn tlrcabove
Sarnpleansrver:
'lhe
volunreofwatcr intakeaffectlhevolurncol'urine
plodtrced
0 Not ableto givc rcsDonseol
KI|0606- Conrmunicatins
(e) l Ableto;rreparea tableanclshorvthelollowing:
I | - I leadingin thetablcarelabcledwithcorreclunits
D All dataarecorrect
P All thestudentsarecorrect
I Stuii"-ni I volu'neo- ] Vulurneoi I
| | waterintake I urineproduce I
| | (rnl) | (ml) |
i | [ nrsrTsecu,r,tI
l_ ^ 1 ,1 t, I
t s l--_--Lrso Ir7o I
I c | 1 2 0 01 2 5 01
t L,
-_'l -
frr,n |
.rro-l
2 Atrleto preparea tableandshowthefollowirrg
l. Il andD 1/D andP// ll and['
Able lo pleparea tableandslrorvtlrefollorving
l. Ilitherll or D or P
(t) K806{)7-' lJsingspatialand iimc relationship
3 Ableto showAl.l, thc, l g r ( , S | | o w / 1 t , 1 , U l ( j l | l l l l c o t I g g u y
Sru.i.nr I Mi,'
8 l
B 160
C 225
I) -|65
2 n ble lo giveanyJ nrincorrectly

Able to give any 2 nrin correclly
Not ableto give respo|sc or wrotrgresfonse
EB!!!! 1!!!srpre!!!Pq{a_
Ableto explaintherelationshipbetweentlrevolurne
of waterintakeandthevolunreof urineprndrrced
Sampleanswer:
Ill - lhe morethevolumeofwatcrintake,thenrorc
thevolurneof urineproduced
El becausernorewateraccumulateinsidethebiood
capillaryof thestudent
E3- causingrrorewatercanbereabsorbedintothe
collectingtubuleol lhekidney
Able to write any two liom the above
El a:odE2 // F.l and [3 // E2 and U3
Ableto writeanyonefrorntheabove
El // D2//F.l
Notableto givcresponseor wrongresponse
Kli0605- Pretlictins
Ableto predicttherateof transpiration
Samplcanswer:
El volurneofurineproduceddccreaseheduced
E2'. lessthan80ml
EJ - becauseconcenlrationofbloodcapillaryof
studentA becornehigher,solesswalercabbc
reabsorbedintothetubule(of thekidney)
Ableto stateanytwo frorntheabove
Able to staleany one frornthe above
Not ablekr give responseor wrong respotrse

(h) Kll0609 - Defining by operation
3 Abletodescribetheconceptof osrnOregulation
conectlybasedonthcobservation
Sarnpleanswer
El isa regulatoryprooessofwatercontentirrside
thebloodcapillary
E2 (canbedetcrnrined)basedonthevolrrmeo[
urineproducedby thekidney
E3 rvhichisdependto thevolrrmeof waterinlake
2 Able to slalearrvlrvofromtheabove
I Ahlc lo stalcanyonefrorrrtherbovc
0 Notableto giveresponseor wrongresponse
(i) K40602- Classifying
l Able1oclassifycorrectlythelistofapparatusanti
materialsaccordinglo lhevariables
Sanrpleanswer:
Radas
Material
Bahan
l N { l 1 n r r u l a r c d
l M a n i p L r l a s i I
Nr.,,c'dil."r'rc
I
"."1"
:"1" ]
l R e s p o n d i n g
I Berserakbolfls I
Measu'inscylinder
I
Conlfolled Slopwa!ch StLrdenl
2 Ableto classifythelistof apparatusandmaterials
accordingto anytwovariables
Able to latclllenlaterialsin anyoneclasscornplelely
0 Not ableto giveresponseor wrongresponse

ANSWtiRFOnQunsTroN2
Problemstatement
l""r:
3
Criteria
;bG;;t"!. trrel,rouGnistot"n'*tortt,,""rp"ri,n"nt"nrr""iryrh;lin;t,rde
criteria:
C l: Manipulatevariables: lightintensity
C 2: Ilespondingvariables: mass/ heightof Ilyrlrilla sp
C 3: Relationin <luestionform andquestionsyrnboll?l
Exanple '.
Problemstatement:
l. Whatistheeffectof lightintensityonthenrassof Ilyrlrillasp?
1_!"t!:Iehfl$'ty:!:qf!e mass/ heighrofIrydriilasp?
Able to statethe problern.tot"r*t oitl.r" .rf,"ri,"*t *im t*.-rit"r*
Example:
Problemstatemenl:
l. l,ightintensityaffectsthernassof llydrillasp.
1 vi h"$f]Ijg1!"flg!j19Iity on thernass/heightof.t{ydriilasp
Ableto statetheof problemtt"t -"nt r"itnctr*;'.it"r'
- - -
Example:
Prohlemstatement:
l. l.ightintensityaffectsthegrowthof'plant/ l{ydrillasp?
No responseor wrongr".po*
--
2
I Tick
0
Criteria
T'o studytheeflectol lightinterxltyonihe*ass of+iyariltasp.
Ilypothesis
Score Criieria
t"tl*""teria,
-
C l: Manipulatevariables
C 2: Respondingvariables
C3: Relationshipof thevariables
Erantple
l. As lightintensityincreases,thehigherthemass/ heightof Hydrillasp.
2. Dillbrentlightinlensirygivesdifferentrnass/ heightof Ilydrillasp.
Ableto statethehypothesiswithtwocriteria
3
2

Variables
[lxarnple:
l. l-ightlntcnsityafli:ctsthenrass/ hcightof I lytlri
2. As light intensityincreases,the rnorcthc grorvtlrol'llytlrilla
Able to statetheideaof thehvnothesis.
No rcsponscor wrollg,response.
Criteria
Able to statethe lhree variables correctly
Manipulatedvariable:LightIntensity// DiflerentWatts/ powerof bulbs
Respondingvariable: Mass/ heightofFlydrillasp
Controlledvariable: Initialmassof plant/ llydrillasp// numbcrof weeks/
duration
Materialsandapparatus
Score Criteria
3
l ick
Ableto stateall functionalnraterials/2 nraterialsand4 aooaratuslor thc
experiment.
Materials: Ilydrillaspplant,pondwater,tissuepaper
Apparatus: Beakers,nrarkerpen,lightbulbs(20W,40W,60W.l00W).
weighingmachine/ metrerule, forcep
2 Ableto stateI materialand3 apparatusfortheexperirnent
Able to stateI rnaterialand 2 apparatusfor theexperirnent.
0 No responseor wrongresponse
Bonusmarks:techniqueand data :2 marks
Technique:
Criteria
Able to statethe actionon respondingvariablewith an apparatus.
Examnle:
Recordthe massof I lydrilla spby usinga balance/ weighingmachine
Or recodetheheightof tlyrilla spby usinga ruler
Procedure(Referto procedurein example)
Score Criteria

Able b state five procedurespl,p2,p3,p4 & p5 corrcctly:
P| : I low I'o Set tJp
'l
heApparatus
P2 : llow
'Io
Make ConstantI'heControlVariable
P3 : I low To ManipulateThe ManipulatedVariable
P4: I low
'l'o
RecordJ he RespondingVariable
l)5:[)recaution
Able to statethree ofany procedurescorrectly
l f i c k Able to statetwo ol'any procedurescorrectly
No responseor wrong response
Criteria
AbletotabulatethecorrecttaUlewittnrnit.s
Conclusion
l. As lightintensityincreases,thehigherthenrass/ heightof Hydrillasp.
2. [)ifferent light intensitygivesdifferentmass/ heightof I lydrilla sp.
3. Ilence,hypothesisis accepted
Ableto rewritethehypothesiscorrectly.
Example:
Criteria
Able to plantheexperimentbasedon 8-9ofthe followingcriteria:
. Statementof identifiedproblem
o Objectiveof study
o Variables
. Slaternenlof hypothesis
'l'ick
BonusI Powerof
bulbs/ Watts
Mass/lengthof Ilydrillasp(gion) Average(g / cnr)
I 2
20
40
60
r00
Criteria
l'lanningthc experiment

I.,istof materialsandapparatus
-l'echn
iqrreused
lixperimentalproccdures
l)resentationof tlata
Conclusiorr
2 Able to plan the cxperimentbasedon 4-7 ofthe criteria:
I Able to plan the experimentbasedon2-3of thecriteria:
0 No responseor wrong response
Fi,rampleof Procerlure.
l. 250rnlol'pondwaterisplacedinto4 beakers, (Pl)
whicharelabelledasA,B,CandI)
2. l0 piecesof IIydrillasp/ aquaticplantsarecutof atthesarnelength (P2)
Theheight/lengtharerecorded (Pl)
3.
-[he
Massof Ilydrillaspisthenmeasuredbyusinga wcighing
Machine (Pl)
4. Tno plantsspecies/ llydrillaspareplaced/ addedtocacholthe
beakersby usinga forceps (Pl)
5. l'he beakersareplacedatdillerentbulbpowerasfbllows
Beaker A for 20 Watts
l]eaker B for 40 Watts
BeakerC for 60 Watts
BeakerD for 100 Watts respectively (P3)
6. Bothplants/ Flydrillasparetakenoul fromeachbeakereveryweek. (PI)
7. 1heIlydrillasparedriedoutusingtissuepaper/ cloth (P5)
andweightusinga weighingmachine/balance.
'l'he
rnass/ heightofplantsarcrccorded (P4)
8. Thisobervationwascarriedoutfor6 weeks (l'2)
9. All thereadingsof massaretabulatedin a tableandtheaveragereading
arecalculated (P4)
PERATTTRANPIIRMAI{KAIIAN TAMAT
t 0

Kertas 3, percubaan spm 2008, terengganu

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Kertas 3, percubaan spm 2008, terengganu