SI'LIT NAMA :4551/3BioloBiKERTAS 3Oktober 2008l % j a m .wTINGXATAN r....

JABATAN PENDIDIKAN TENENGGANU

PEPERIKSAAN AKHIR TAHT]N TINGKATAN.I

SUIL PELAJARAN MALAYSIA 2OO8

BIOLOGI

Kertas 3

Satu jam tiga puluh minit

JANGAN BI]KA KERTAS SOALAN INI Sf,I{INGGA DIBERITAHU

L Tuliskan nama dan tingkatan anda padaruang yang disediakan

2. Jawab semua soalan

3. Jawapan anda hendaHah ditulis dalamraang yang disediakan dalam kena.ssoalan

4. Rajah yang mengiringi soalandimaksudkan untuk membei maUumalyang berguna bagi me1jawob soalan.Rajah tidak dilukis mengikut skalakecuali ditryatakan.

4. Markah yang diperuntukkan bagi setiapsoalan dan ceraian soalan dinmiukkondalatn kwngan

6. Anda dibenarkan menggunakankalkulator saintiJik yang tidak bolehdiprogam.

KodPemeriksa

Soalan MarkahPenuh

MarkahDiperolehi

I J J

z

Respons

l 5

Laporan

Kertas soalan ini mengandungi 16 halaman bercetak dan 0 halaman tidak bercetakDap

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INFORMATION FOR CAIYDIDATES

l. This qucstion paper consists oftwo question : Question I snd euestion 2.

2. Answcr all questions. Write your answers for Question I in the spaces provided in thisquestion paper.

3. write your answers for Questlon 2 on the extra paper in the space answer provided by thispapcr. You may use equations, diagams, table, graph and other suitable methods tocxplain your answ€rs.

4 Show your working, it may hglp you to g€t marks.

5. The diagrams in the questions are not drawn to scale unless stated.

6. The marks allocated for each question or sub-part ofa question are shown in a brachets.

7. Ifyou wish to change your answer, cross out the answer that you have done. Then writedown the new answer.

8. You may use a non-programmable scientific calculator.

9. You are advised to spend 45 minutes to answer euestion I and 4j minutes forQuestlon 2.

Pemberian markah:

Morkrh Penerrngan

Cemcrlang : Respons yang paling baik

2 Memurskrn : Respons yang sederhana

Lemab ; Respons yang kurang tepat

0 Tiada respons ggresponJsalah--

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Answer all the questions.Jawab semua soalan.

Question ISoolan I

Diagrarn I shorvs thrce locations ofwater sources at the upstream, oil palm factory andhousing area labelled as p, e and R respeclively

The level of water source po ution is determined by the biochemical oxygen demand (BOD)

rd

a

{/,, i'i f \

"{ln"rr " . l i tDiagram IRajah I

WL'; ;:y; :H, ",f:,!,:,#;;#:";

;:; ;il: f:t i::r;,, Ki t ang Ke lapa s aw i, dan

Tahap pe ncemaran sumber iir ditentukan oteh t<epeiuai' oLigen tnkinia (BOD)

P = Upstream

P = Hulu sungai

Diagram 2

3

Q = Oil farmFactory

Q = KitangKelapaSowit

R = HousingArea

R = Kawasanperumahan

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Diagam 2 shows the apparatus set-up for this experiment.Gambarajah 2 menunjukkan penyediaan peralatan unluk eksperimen ini

The steps ofthe study are as follows:Langlrah-langkah kajian adalah seperti beriktt :

l. 100 ml of water sample from P,Q,R and S are placed in a 250m1 reagent bottleswhich are labelled the same.

1. 100 ml sampel air dari P,Q, Rdan S diletakkon ke dalam 250 ml botol rcagent yangsama pelabelannya.

2. lml of 0.lo/o methylene blue is added into the reagent bottles using a syringe.2. Inl 0.1% methylene biru ditambah ke dalom botol reagent menggunakan sustu

Picagari

3. The bottles are closed with a stopper quickly and than placed in a dark cupboard.3. Botol-botol itu ditutup dengan penitup seberapa segera dan kemudlan diletakkan di

dalnn almari gelap.

4. Every day, the decolurisation of methylene blue for each reagent boftle is examined4. Setiap hari, pelunturan warna metlulene birlr setiap botol reagent di kali .

5. The time taken for decolourisation ofmethylene blue for each watersample were recorded.

5. Masa yang yang diambil untuk pelunturan metlrylene biru setiap sampel airdirekodkan.

6. The results are tabulated as shown in table I below:6. Keputusan direbdkan dalamjaduul I seperti di bowah:

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WatersourceSumber air

Reagentsbottle/ watersampleBotolreagent /sampel air

Stop watch readingI Bacaanjam randik

Time taken fordecolourisation of

methylen€ blue(minutes)

/ masa diambil untukpelunturan methylene

biru (minit)

UpsfeamLaluanatas a ir

P

Oil PalmFrc,tary llkilangkclapasawu

a

Housingareall kar+'asanperumahan

R

Table I

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l(a) Record the time taken for the decolourisation ofmethylene blue solutionin table I

Rekodkan masa pelunturan warna larulan metilena birtt di dalam Jaduall

[ 3 marksl[ 3 markuh]

(b) (i) State two different observations found in tablel.Nyatakan dua pemerhation yang berlainan diperolehi dalam ,ladual I

Obscrvation 1:Pemerhatian I :

Observation 2:Pemerhatian 2:

[ 3 marks]I J markah J

(bxii) State two inferences from the observations in (b)(i).Nyalakan dua inference daripada pemerhatian di (b)(i)

Infercnc€ from observarion l:Inferew daripada pemerhatian l:

l(b) (i)

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lnference from observation 2:Inferew daripada pemerhatian 2 :

[ 3 narks][ 3 narkah]

(c) Complete Table 2 bascd on this cxperiment .I*ngkapkan Jadual 2 berdasarkan eksperimenl ini.

VariablesPembolehubah

Method to handleCara mengendalikan

oembolehubahl. Manipulated variable:I. Pembolehubah dimanipulosi :

How to alter llle manipulaledVariableBagaimana mengubahpe m b o I e hu b ah dimanipul as i

2.2.

Responding variable:P embole hub ah bergemk b aku

How to determine the respondingvariableBagaimana mcnentukanpemb olehubah bergerak b alas

1(bx'i)

E

I (c)

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How to the conholled

3. Pembolehubah Malar variablesBagaimana mengekalknnoembolehubah malar

Jadual 2Table 2

State the hypothesis for this experimentNyatdkan hiPotesis bagi eksperiment ini-

I j marks ][ 3 narkah]

(d)

[ 3 narla][ 3 markah]

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(cYi) Construcl a table to record the results ofthis experiment'

vour table should contain the following tittles:

(e)(ii)

. Water sample

. ii.e t t"n for docolourisation of methylene blue

Bina satujadual untuk mereknd kepulusan.bagi ekspe.rimen in

Jadual anda hendaklah mengandungi tojuklaiuk bertnt':

' SamPel air. Maia untuk pelunnuran metileta biru

[ 3 narks][ 3 markah]

Based on table dmwn at l(e)(i), explain the relstionship between time

taken, oxygen concentration and BOD level in this experiment'

Berdasarkaniadual yand dibuat di 1(e)(i), teranekan hubungan di antara-^ii aio tit, kzpekatan oxgen dan aras BOD dalam eksperimen ini'

[ 3 na*s][ 3 markah]

I (e) (D

I (e) (ii)

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(e)(iii)

According io the rcsult of this eksperimen, explain the relationshiobetween BOD value and the water pollution situation

Berdassrkan kepada fupuusan e*sperimen ini, terangkan perkaitanontma nilai BOD dengan kcadaan percemaran air.

[ 3 marksJ[ 3 narkahJ

(t List out_all the apparatus and materials uscd in this experimcnt.Senaraikan semua bahon dan radas dalam "ksp"ri;";-;;-"-

[ 3 narksJ[ 3 narkahJ

l0

l(exiii)

l(0

[]

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lf another set ofexperiment were prepared by using tap water and drain

water. Dredict the time taken for the methylene blue to becomes

decolourised . Give reason for your prediction.

Jika suqtu set eksperimen disediakan menggunaktn air paip dan oit

lingfung, ,amalian -asa pelunturan larutan metilena biru untuk menjaid

tidak berwarne

(h)

[ 3 marksJ[ 3 markah]

Based on the results oftbe experiment, deduce about BOD level ofwater

Berdasarkan kepada kepuusan eksperimen, takrfun mengenai tahap

BOD air.

[ 3 marks]I j nerkah]

l l

l (e)

n

I (h)

E

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Question 2Soalan 2

A group ofstudents Lriu L.l Ut,1 .r., Li ' i l t l i i t tent tu determine the (content o0 energy value

i" ii"r'"J"*, casherv nttr 'ud v/l!rlf 1'r(1;(l / dift'erent type of food samples' In this

".i**""t, ilt" grorip of stu{J(rlJ i-oc h;':ri used the matcrials and apparatus that shows

beiow :-

Sekumpulan pela1cr lelalt trtt t;;t!*ti:'':t :ttlu (L'\lta l ittcn untttk menenluksn kandungan

nilai tinagu'di ittlal4 ft1li't:y ritttrt 'ltti'r't iuttr\tli pulih/ jenis stmpttl makanan yang

berbeza. "Di

dalcrnt , I.i1'L't:,t:,'" ;',1 11 ,a1'e1;1t 2cl,it$ iru lcl'Jh menggunokon hahon d{tn

ra,Ias yang Jilunt'tAt'-.^ : :. ' , '

l loldcrihenn\)meter

l)istil lcd wat€r

Boiling tubo

Based on the sampic ol kr'rd l lrat l iavi ir ' :c,t l iscii l ly the group ofstudents, plan a

laboratory experimerll to ijijt{.fllrirr.r "ihf i-rlill(i t ol cnefgy value in that sample of food 1'he

planning of your exllerintcttl tt l l i ' , t lrtclrl{ ie thf; following aspect :

Berdasarkan san4)el ltrtit!1tttt 1ttr,'t, tt'!,,h ligtnuk*t oleh kumPulan pelaiar tersebut'

rancangkan ,atu "k\!)i. t i'tit: ti tl'ik'ti,rl ::r,!uJc ntentttlukan kandungan niltti tenagu di tlulem

sampeimakanon t;\ch&: !:'\:tu;, ,"ttl;:tit tkslcnittat anda perlu meliputi aspek-aspek

berikut:

Problem stat€nefllPernyataan n0s0l6nAim of investigtrttonObjektif kaj ianHypothesisHipotesisVariablesPembolehubahList of apparatlrs arllj rrt^rlf, ;.rlsSenarai radus don hu!rcatTeehnique uscdTe kttik yang diganak'tn

l l

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r ExperimentalprocedureProsedur ekqterimen

. Pr€sentation of dataCara data dikomunikasi kan

o ConclusionKesimpulan

I l7 marks]

END OF QT'ESTION PAPER

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