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    JABATAN PELAJARAN PERAK

    SOALAN LATIH TUBI BERFOKUS 2

    SPM 2011

    SCIENCE

    Paper 1

    One hour and fifteen minutes

    DO NOT OPEN THE QUESTION PAPER UNTIL YOU ARE TOLD TO DO SO

    This question paper consists of 18 printed pages

    1511/1

    SOLAF 2Science

    2011Paper 1

    1 hours

    1511/1SULIT

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    SOLAF 2

    1511/1 2

    1. Which of the following activity is controlled by proprioceptor?

    Antara berikut, aktiviti manakah dikawal oleh deria kinestesis?

    A drawing a scenery

    melukis gambar pemandangan

    B shooting a hunted deer

    menembak rusa yang diburu

    C walking on a log to cross a river

    meniti titian untuk menyeberangi sungai

    D pull a hand when touching hot object

    menarik tangan apabila tersentuh objek tajam

    2 Diagram1 shows an endocrine gland in human body

    Rajah 1 menunjukkan satu kelenjar endokrin dalam badan manusia.

    Diagram 1

    Rajah 1

    How the hormone secreted by gland P is transfered to the target cell?

    Bagaimanakah hormon yang dirembeskan oleh kelenjar P dipindahkan ke sel sasaran ?

    A through lymph vessel C through nervous system

    melalui salur limfa melalui sistem saraf

    B through blood vessel D through immune systems

    melalui salur darah melalui sistem keimunan

    3 The height of student A and student B are recorded in the Table1.

    Ketinggian pelajar A dan pelajar B direkodkan seperti dalam Jadual 1.

    StudentPelajar HeightKetinggian

    A 1.8 m

    B 2.3 m

    Table 1

    Jadual 1

    Gland P

    Kelenjar P

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    SOLAF 2

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    The average height of human is 1.7 m. Which gland secretes excess hormone in student B?

    Purata ketinggian manusia ialah 1.7 m. Kelenjar manakah yang merembeskan hormon

    berlebihan pada pelajar B?

    A Thyroid B Adrenal C Pituitary D Testis

    Tiroid Adrenal Pituitari Testis

    4 What is the function of medulla oblongata?

    Apakah fungsi medulla oblongata?

    A Controls the rate of heart beat

    Mengawal kadar denyutan jantung

    B Controls the size of pupils

    Mengawal saiz anak mata

    C Receive and interprete impuls

    Menerima dan mentafsirkan impuls

    D Control body balanceMengawal keseimbangan badan

    5 Which inherited disease is suffered by an individual that has 3 chromosomes at the 21st pair?

    Penyakit baka manakah yang dialami oleh seseorang yang mempunyai 3 kromosom pada

    pasangan ke 21?

    A Hemofilia C Sickle cell anaemia

    Hemofilia Anemia sel sabit

    B Colour blindness D Downs Syndrome

    Buta warna Sindrom Down

    6 Which of the following is true about non-identical twins?

    Antara berikut yang manakah benar tentang kembar tak seiras?

    A The zygote formed after fertilisation splits into two.

    Zigot yang terhasil selepas proses persenyawaan membahagi dua.

    B Two ova are fertilized by two sperms.

    Dua ovum disenyawakan oleh dua sperma.

    C Both foetuses share the same placenta.

    Kedua-dua fetus berkongsi plasenta yang sama

    D They always have the same gender.Jantina mereka sentiasa sama.

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    SOLAF 2

    1511/1 4

    7 Diagram 2 shows a stage of mitosis.

    Rajah 2 menunjukkan satu peringkat mitosis.

    Diagram 2

    Rajah 2

    What will be the number of chromosomes in each daughter cell when the process of mitosis is

    complete?

    Berapakah bilangan kromosom dalam setiap sel anak setelah proses mitosis selesai?

    A Six B Four C Three D Twelve

    Enam Empat Tiga Dua belas

    8 Diagram 3 shows the inheritance of colour blindness.Rajah 3 menunjukkan pewarisan bagi buta warna

    Diagram 3

    Colour blindness is caused by the mutated recessive gene, X b. Which offspring is a colourblindness carrier?

    Buta warna disebabkan oleh gen resesif termutasi, Xb. Anak yang manakah merupakan pembawa

    gen buta warna?

    A R B Q C P D S

    Xb

    Y XXb

    Xb

    Y X Xb

    P Q R S

    Colour blind father

    (Bapa buta warna)

    Carrier mother

    (Ibu pembawa)

    X

    Gamete

    (Gamet)

    Offspring

    (Anak)

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    SOLAF 2

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    9 The elements in a periodic table are arranged according to the

    Unsur-unsur didalam Jadual Berkala disusun mengikut

    A nucleon number C number of neutrons

    nombor nukleon bilangan neutron

    B proton number D number of isotopes

    nombor proton bilangan isotop

    10 Based on Table 2, which elements are isotopes?

    Berdasarkan Jadual 2, manakah unsur-unsur yang merupakan isotop?

    Elements

    Unsur

    Nucleon number

    Nombor nukleon

    Number of protons

    Bilangan proton

    Number of neutron

    Bilangan neutron

    P 12 6 6

    Q 13 6 7

    R 14 7 7

    S 16 8 8

    Table 2

    Jadual 2

    A Q and R B R and S C P and S D P and Q

    11 Pure water can be produced from polluted water by

    Air tulen boleh dihasilkan daripada air yang tercemar dengan cara

    A evaporation B distillation C boiling D crystallization

    penyejatan penyulingan pendidihan penghabluran

    12 Which of the following difference between metals and non-metals is correct?

    Antara perbezaan logam dengan bukan logam yang berikut, manakah yang betul?

    Metals

    LogamNon-metals

    Bukan logam

    A Non-ductileTidak mulur

    DuctileMulur

    B Dull surface

    Permukaan pudar

    Shiny surface

    Permukaan berkilat

    C Low melting pointsTakat lebur yang rendah

    High melting pointsTakat lebufr yang tinggi

    D Good conductors

    Konduktor yang baik

    Poor conductors

    Konduktor yang lemah

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    SOLAF 2

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    13 Which of the following is a physical change?

    Manakah antara berikut adalah perubahan fizik?

    A Heating of zinc carbonate

    Pemanasan zink karbonat

    B. Boiling of water

    Pendidihan air

    C Heating of iron and sulphur

    Pemanasan besi dan sulfur

    D Putting a piece of calcium into water

    Meletakkan secebis kalsium ke dalam air

    14 Diagram 4 shows an experiment to study the heat change in a chemical reaction.

    Rajah 4 menunjukkan satu eksperimen untuk mengkaji perubahan haba dalam satu tindak balas

    kimia.

    What type of reaction is involved?

    Apakah jenis tindak balas yang terlibat?

    A Neutralization B Endothermic C Exothermic D Decomposition

    Peneutralan Endotermik Eksotermik Penguraian

    15 The following information shows about metals P, Q and R. Maklumat berikut tentang logam P, Q dan R

    Metal P reacts vigorously with cold waterLogam P bertindakbalas cergas dengan air sejuk

    Metal Q does not reacts with cold water or steamLogam Q tidak bertindakbalas dengan air sejuk atau stim

    Metal R reacts with steam but not with cold water

    Logam R bertindakbalas dengan stim tapi tidak dengan air sejuk

    Diagram 4

    Rajah 4

    Beginning of

    the experiment.

    Permulaan

    eksperimen

    End of theexperiment.

    Akhir eksperimen

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    SOLAF 2

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    Which is the correct ascending order of reactivity of matels P, Q and R ?

    Urutan menaik yang manakah betul tentang kereaktifan logam P, Q dan R?

    A Q, R, P B P, Q, R C R, Q, P D Q, P, R

    16 Diagram 5 shows an electroplating of an iron ring.

    Rajah 5 menunjukkan proses penyaduran cincin besi

    What is solution X ?

    Apakah larutan X?

    A Aluminium nitrate C Silver nitrate

    Aluminium nitrat Argentum nitrat

    B Iron (II) sulphate D Copper (II) sulphate

    Ferum(II) sulfat Kuprum (II) sulfat

    17 The following information shows the properties of a radioactive ray P.Maklumat berikut menunjukkan sifat-sifat satu sinar radioaktifP.

    What is P?

    Apakah P?

    A Alpha particles B Beta particles C Gamma radiation D Neutron

    Zarah alfa Zarah beta Sinar gamma Neutron

    negatively chargedbercas negative

    attracted by positive chargesditarik oleh cas-cas positif

    can be blocked by an aluminium

    boleh dihentikan oleh sekeping aluminium

    Iron ring

    cincin besi

    Silver

    argentum

    Solution X

    larutan XDiagram 5Rajah 5

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    SOLAF 2

    1511/1 8

    18 Which of the following is caused by radioactive radiation?

    Manakah antara yang berikut disebabkan oleh sinaran radioaktif?

    A Greenhouse effect C Global warming

    Kesan rumah hijau Pemanasan global

    B Acid rain D Mutation of living cells

    Hujan asid Mutasi pada sel-sel hidupan

    19 Diagram 6 shows a nuclear reaction.

    Rajah 6 menunjukkan satu tindakbalas nuklear.

    What is particle X?

    Apakah zarah X?

    A Proton B Electron C Nucleon D Neutron

    Proton Elektron Nukleon Neutron

    20 Which of the following materials is mostly used to keep the radioactive substances?

    Antara bahan-bahan berikut, yang manakah paling banyak digunakan untuk menyimpan bahan

    radioaktif?

    A Lead B Aluminium C Carbon D Zinc

    Plumbum Aluminium Karbon Zink

    21 Diagram 7 shows an image formed by a convex lens.

    Rajah 7 menunjukkan imej yang dibentuk oleh sebuah kanta cembung.

    SCIENCEConvex lens

    Kanta cembung

    Diagram 7Rajah 7

    X

    X

    Heavy nucleus

    Nukleus berat

    Light nucleus

    N