BIOLOGY Phagocytosis C Lysis Fagositosis Lisis B Agglutination D Neutralisation Aglutinasi...

SULIT 4551/1

4551/1 ©2008 [Lihat sebelah SULIT

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4551/1 Biology Kertas 1 Sept 2008 1 ¼ jam

pkpsm

PEPERIKSAAN PERCUBAAN SPM 2008

Kertas soalan ini mengandungi 19 halaman bercetak

BIOLOGY

Kertas 1

Satu jam lima belas minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU 1. Kertas soalan ini adalah dalam dwibahasa.

2. Calon dikehendaki membaca maklumat di halaman 2 atau halaman 3.

Name:…………………………………………………

Form :………………………………………………….

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MAKLUMAT UNTUK CALON

1. Kertas soalan ini mengandungi 50 soalan.

2. Jawab semua soalan.

3. Jawab dengan menghitamkan ruangan yang betul pada kertas jawapan.

4. Hitamkan satu ruangan sahaja bagi setiap soalan.

5. Sekiranya anda hendak menukar jawapan, padam tanda yang telah dibuat.

Kemudian hitamkan jawapan baru.

6. Rajah yang mengiringi soalan tidak dilukiskan mengikut skala kecuali

dinyatakan.

7. Anda dibenarkan menggunakan kalkulator saintifik yang tidak boleh

diprogram.

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INFORMATION FOR CANDIDATES

1. These question paper consists of 50 questions.

2. Answer all questions

3. Answer each question by blackening the correct space on the answer sheet.

4. Blacken only one space for each question.

5. If you wish to change your answer, erase the blackened mark that you have

made. Then blacken the space for the new answer.

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

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

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1 The diagram shows five different cells observed under a microscope.

Rajah menunjukkan lima sel yang berbeza, diperhatikan di bawah mikroskop

Which of the cells are animal cells? Yang manakah berikut adalah sel haiwan?

A K, L and M C J, K and M K. L dan M J, K and M B J, K and N D L, M and N J, K dan N L, M dan N

2 The diagram shows a unicellular organism.

Rajah menunjukkan sejenis organisma unisel.

Which process is involved in the movement of water as shown in diagram? Apakah proses yang terlibat dalam pergerakan air yang ditunjukkan dalam rajah di atas? A Diffusion C Active transport Resapan Pengangkutan aktif B Osmosis D Facilitated diffusion Osmosis Resapan berbantu

J K

L M

N

Water Air

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3

The diagram show a nucleotide molecule of DNA.

Gambarajah menunjukkan satu molekul nukleotida dalam DNA.

What are P,Q and R?

Apakah P , Q dan R ?

P Q R

A Pentose sugar

Gula Pentos

Nitrogenous base

Bes bernitrogen

Phosphate group

Kumpulan fosfat

B Nitrogenous base

Bes bernitrogen

Phosphate group

Kumpulan fosfat

Pentose sugar

Gula Pentos

C Phosphate group

Kumpulan fosfat

Pentose sugar

Gula Pentos

Nitrogenous base

Bes bernitrogen

D Pentose sugar

Gula Pentos

Phosphate group

Kumpulan fosfat

Nitrogenous base

Bes bernitrogen

4

The diagram shows the phases in mitosis. Rajah menunjukkan fasa-fasa dalam mitosis.

Which of the following statements is true about the chromosomes at stages X and Y? Antara pernyataan berikut yang manakah benar tentang kromosom pada peringkat X dan Y ?

Phase X Phase Y

A The chromosomes start to shorten and thicken

The chromosomes move to the opposite poles af the cell

B The chromosomes have replicated

The chromosomes start to elongate and clearly visible

C The chromosome are at the equator plane

The chromosomes are at the opposite poles in the cell

D The chromosomes form twin chromatids

The homologous chromosomes are paired

X Y Metaphase Telophase

P

Q R

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The diagram shows a phase of mitosis taking place in the nucleus of an animal cell. Rajah menunjukkan satu fasa mitosis yang berlaku dalam nucleus pada sel haiwan

What is the phase?

Apakah fasa itu?

A. Prophase C Anaphase

Profasa Anafasa

B. Metaphase D Telophase

Metafasa Telofasa

6

The equation shows a process in the formation of disaccharides

Persamaan menunjukkan satu proses dalam pembentukkan disakarida

Glucose + Glucose Maltose + Water

What is process X?

Apakah proses X ?

A Hydrolysis C Evaporation

Hidrolisis Sejatan

B Condensation D Reduction

Kondensasi Penurunan

X

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7 The diagram shows human digestive system. Rajah menunjukkan sistem pencernaan manusia.

Which of the following does not produce enzyme. Yang manakah berikut tidak menghasilkan enzim.

A P C R B Q D S

8 The diagram shows an organ labeled P, which is part of the human digestive

system.

Rajah menunjukkan satu organ berlabel P yang merupakan sebahagian daripada

sistem pencernaan manusia.

When a baby drinks milk, what would happen to the milk protein in P?

Apabila seorang bayi minum susu, apakah yang akan berlaku kepada protein susu

dalam organ P?

I Caseinogen is converted to casein

Kaseinogen ditukarkan kepada kasein

II Pepsin digests the casein to polypeptides

Pepsin mencernakan kasein kepada polipeptida

III The acid hydrolyses the casein to caseinogens

Asid menghidrolisiskan kasein kepada kaseinogen

IV Pepsin digests the protein to amino acids

Pepsin mencernakan protein kepada asid amino

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A I only B IV only C I and II only D III and IV only

9 Diagram shows the trachea system of an insect.

Rajah menunjukkan sistem trakea bagi seekor serangga.

Which part does the gaseous exchange occur?

Bahagian manakah tempat berlakunya pertukaran gas?

A J C L

B K D M

10 What is produced during the anaerobic respiration in both human muscles and

yeast?

Apakah yang dihasilkan dalam respirasi anaerob dalam otot manusia dan yis?

A Ethanol C Lactic acid

Etanol Asid laktik

B Heat energy D Water

Tenaga haba Air

11 The diagram shows an interaction between two organisms, X and Y.

Rajah menunjukkan interaksi antara organisma X dan Y.

K

L

M

J

Y

X (dead tree)

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What type of interaction between X and Y shown in the diagram?

Apakah jenis interaksi tersebut?

A Saprophytism C Parasitism Saprofitisma Parasitisma

B Mutualism D Commensalism Mutualisma Komensalisma

12 The diagram shows a person with a swollen neck due to the enlargement of a

gland. This is caused by deficiency of a certain mineral in the diet.

Rajah menunujukkan seorang yang bengkak di leher akibat dari pembesaran satu

kelenjar. Ini adalah disebabkan oleh kekurangan satu mineral tertentu dalam diet.

Name the mineral. Namakan mineral itu.

A. Ferum C Potassium Ferum Kalium

B. Phosphorous D Iodine Fosforus Iodin

13 The depletion of the ozone is as shown by the following reaction.

Penipisan lapisan ozon ditunjukkan oleh tindak balas berikut.

What is gas R?

Apakah gas R?

A Carbon dioxide C Chlorofluorocarbon

Karbon dioxide Kloroflorokarbon

B Chlorine D Hydro-chlorofluorocarbon

Klorin Hidro- kloroflorokarbon

Gas R Ozone Oxygen gas + Oxygen atom

( O3 ) ( O2 ) ( O )

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14 The diagram shows the emission of various gases by a chemical factory in an

industrial area.

Gambarajah menunjukkan pengeluaran pelbagai jenis gas dari kilang kimia dalam

suatu kawasan perindustrian.

Which of the following is the most likely to occur?

Antara yang berikut yang mana paling mungkin untuk berlaku?

A Acid rain C The greenhouse effect

Hujan asid Kesan rumah hijau

B Global warming D The thinning of the ozone layer

Pemanasan global Penipisan lapisan ozon

15 The diagram shows a sequence in a process carried out by a leucocyte. Rajah menunjukkan urutan dalam satu proses yang dilakukan oleh leukosit. What is the process? Apakah proses tersebut? A Phagocytosis C Lysis Fagositosis Lisis B Agglutination D Neutralisation Aglutinasi Peneutralan

Bacteria bakteria

SO2 NO2 NO

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16

Which of the following represents the tissues of an aquatic plant? Antara berikut, tisu manakah membantu sokongan dalam tumbuhan akuatik ?

17 The diagram shows a type of plant tissue.

Rajah menunjukkan sejenis tisu tumbuhan.

What is the importance of the thickening of substance X to the plant tissue?

Apakah kepentingan penebalan bahan X terhadap tisu tersebut ?

A To transfer photosynthesis products

Untuk memindahkan hasil fotosintesis

B To give turgidity to the tissues

Untuk memberikan kesegahan kepada tisu

C To transfer water and mineral salts

Untuk memindahkan air dan garam mineral

D To give support and mechanical strength

Untuk memberikan sokongan dan kekuatan mekanikal

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18 The diagram shows a hinge joint. Rajah menunjukkan sendi engsel pada siku. Which of the following tissues joins P to Q ? Di antara berikut yang manakah menghubungkan P dengan Q? A Fibers B Tendon

Fiber Tendon C Cartilage D Ligament Rawan Ligamen

19 The diagram shows the structure of a human arm with muscle X and Y. Rajah menunjukkan struktur lengan manusia dengan otot X dan Y. Which of the following pair of muscles action is true when the arm is straightened? Di antara berikut, pasangan tindakan otot manakah benar apabila lengan diluruskan. Muscle X Muscle Y Otot X Otot Y A Contracts Relaxes Mengecut Rehat B Relaxes Contracts Rehat Mengecut C Contracts Expands Mengecut Mengembang D Expands Contracts

Mengembang Mengecut

P

Q

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20 The diagram shows a reflex arc. Rajah menunjukkan suatu arka refleks.

What is S ? Apakah S ?

A Ventral root C Grey matter Akar ventral Jirim kelabu

B Ganglion D Dorsal root

Ganglion Akar dorsal

21 A boy is born normal but suffers from dwarfism since childhood. The suitable hormone to treat him is Seorang budak lelaki normal menderita akibat dwarfism sejak kecil. Hormon yang sesuai untuk merawatnya adalah A sex hormone C growth hormone hormone seks hormone pertumbuhan

B gonadotropic hormone D adrenocorticotropic hormone Hormon gonadotrofik hormon adrenocorticotropic

22 The diagram shows stages of follicle development in ovary. Rajah menunjukkan peringkat perkembangan folikel di dalam ovari. What hormone is secreted at stage W ? Apakah hormon yang dirembeskan pada peringkat W? A Oestrogen C Lutenising hormone

Estrogen Hormon pelutinan B Progesterone D Follicle stimulating hormone

Progesteron Hormon perangsang folikel

W

S

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23 Diagram shows the genetic diagram used to determine the sex of the offsprings. Rajah menunjukkan rajah skema penentuan seks anak bagi manusia. Parents Mother Father Ibubapa Ibu Bapa Meiosis Gametes Fertilisation Male baby Female baby What are the genotypes of cell P.Q and R? Apakah genotip dalam sel P, Q dan R ?

P Q R

A 44 + X 44 + Y 44 + Y

B 44 + XX 44 + XY 44 + XX

C 22 + X 22 + Y 22 + X

D 22 + X 22 + X 22 + Y

24 In the 16th week, a pregnant woman is infected with a disease. The infection causes the placenta to stop functioning. Which of the following is the effect of the infection? Pada minggu ke 16, seorang wanita hamil dijangkiti dengan satu penyakit. Jangkitan ini menyebabkan plasentanya berhenti berfungsi. Di antara berikut merupakan kesan dari jangkitan penyakit ini.

A The foetus is aborted Keguguran fetus

B The foetus continue to develop Fetus terus berkembang

C A Down’s syndrome child is born Lahir anak sindrom down

D The uterine wall continues to thicken

Dinding uterus terus menebal

P R Q

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25

The diagram shows the process of oogenesis.

Gambarajah menunjukkan proses oogenesis

What are represented by J, K, L and M ? Apakah yang diwakili oleh J, K, L and M?

26 The diagram shows the structure of an ovule.

Rajah menunjukkan struktur satu ovul

Which part of the labeled as A, B, C and D develops into the testa after

fertilization?

Bahagian mana yang berlabel A, B, C and D berkembang menjadi testa selepas

persenyawaan?

J K L M

A Oogonium Polar body Secondary oocyte Ovum

B Oogonium Polar body Ovum Secondary oocyte

C Primary oocyte Oogonium Secondary oocyte Ovum

D Primary oocyte Secondary oocyte Ovum Polar body

C

D B

A

J

L

J

M

K

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27

The diagram shows the action of an enzyme sucrase on sucrose. Rajah menunjukkan tindakan enzim sukrase ke atas sukrosa.

X and Y represent X dan Y diwakili oleh

A Glucose and glucose C Glucose and fructose Glukosa dan glukosa Glukosa dan fruktosa

B Glucose and maltose D Glucose and galactose Glukosa dan maltosa Glukosa dan galaktosa

28 The diagram shows a daughter cell is produced from cell division X

Rajah menunjukkan satu sel anak yang terhasil melalui pembahagian sel X

Which cell is produced when the daughter cell undergoes differentiation?

[Sel yang mana dihasilkan apabila sell anak melalui pembezaan?]

Parent cell Daughter cell

X

D B

C A

Y

X

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29

The diagram shows a experiment to determine energy value in various of food sample. Diagram menunjukkan satu eksperimen untuk menentukan nilai tenaga dalam beberapa sampel makanan. Four different types of food samples, but of the same mass were burnt. The temperature of water in the boiling tube is taken before and after the experiment. Which of the following food samples labeled P, Q, R and S contains the largest amount of lipids? Empat jenis sampel makanan yang berbeza tapi sama jisimnya telah dibakar. Suhu air dalam tabung didih diambil sebelum dan seleppas eksperimen. Manakah antara sampel makanan berikut P, Q, R dan S mengandungi lipid paling banyak.

Food sample Sampel

makanan

Initial temperature

of water /0C

Suhu awal air /0C

Final temperature

of water /0C

Suhu akhir air /0C

A P 18 37

B Q 17 94

C R 17 86

D S 18 74

30

Which of the following are the products of aerobic and anaerobic respiration in muscles? Manakah berikut adalah hasil dari respirasi aerobik dan anaerobik dalam otot.

Aerobic Respiration

Respirasi aerobik

Anaerobic Respiration

Respirasi anaerobik

A Carbon dioxide and water

Karbon dioksida dan air

Ethanol

Etanol

B Carbon dioxide and water


Lactic acid

Asid laktik

C Lactic acid

Asid laktik

Ethanol

Etanol

D Lactic acid

Asid laktik

Carbon dioxide and water


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31 The diagram shows a seedling of a plant.

Rajah menunjukkan anak benih sejenis tumbuhan.

The physical adaptation of the seedling is important in

Penyesuaian fizikal anak benih ini

A supplying nutrients to the plant

membekalkan nutrient kepada tumbuhan

B protecting the seedling from the saline habitat

melindungi anak benih dari habitat air masin

C securing a stable grasp of the substrate

mendapatkan cengkaman yang kukuh pada substrat

D ensuring a successful dispersion of seedling

memastikan kejayaan pencaran anak benih

32 Water samples P and Q were tested for pollution level. The results are as shown in the table below.

Sampel air P dan Q telah diuji untuk aras pencemaran. Keputusan adalah seperti yang ditunjukkan dalam jadual di bawah.

Which of the following is true about water sample P compared to Q?

Antara berikut yang manakah benar tentang sampel air P berbanding Q?

A Higher BOD value

Mempunyai nilai BOD yang lebih tinggi

B Higher population of fish

Water sample

[Sampel air]

Time taken for the methylene blue to decolourise (hour)

[Masa untuk metilena biru meluntur (jam)]

P 3

Q 10

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Mempunyai populasi ikan yang lebih tinggi

C Lower population of microorganisms

Mempunyai populasi mikroorganisma yang lebih rendah

D Lower content of dissolved carbon dioxide

Mempunyai kandungan karbon dioksida terlarut yang lebih rendah

33 The diagram shows a pyramid number. Rajah menunjukkan satu piramid nombor

Which of the following is true about the organisms in Diagram above?

V W X Y

A Decomposer Producer Primary Consumer

Secondary Consumer

B Autotroph Autotroph Heterotroph Heterotroph

C Producer Primary Consumer

Predator Decomposer

D Producer Primary Consumer

Secondary Consumer

Tertiary

Consumer

34

The diagram shows three different blood circulatory system P, Q and R. Rajah menunjukkan tiga sistem peredaran darah P, Q dan R.

Which of the following is a correct match of the animal and its circulatory system? Antara berikut yang manakah padanan yang betul bagi haiwan dan sistem peredarannya?

Y

X

W

V

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Human

Manusia

Amphibian

Amfibia

Fish

Ikan

A P Q R

B P R Q

C R P Q

D R Q P

35 The information below shows the stages of the blood clotting mechanism in human.

Maklumat di bawah menunjukkan peringkat dalam mekanisme pembekuan darah pada manusia. Which of the following is the correct sequence of that process?. Yang manakah berikut adalah urutan yang betul bagi proses tersebut? A S T Q P R

B P Q R S T

C Q S T P R

D Q P S T R

P – Fibrinogen changes into fibrin

Fibrinogen berubah menjadi fibril

Q – Clumped platelets

Platelet bergumpal

R – Meshwork of threads are formed over the wound

Keruping terbentuk pada luka

S – Release of thrombokinase

Membebaskan thrombokinase

T – Prothrombin changes into thrombin

Protrombin berubah kepada thrombin

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36 The diagram shows the fins of a fish. Rajah menunjukkan sirip pada seekor ikan

Which one of the fins A, B, C and D helps the fish to stay on course without yawing

in the water?

Di antara sirip A, B, C dan D, yang manakah membantu ikan berada pada kedudukannya tanpa merewang dalam air?

37

A hand is withdrawn when pricked by a sharp needle. The following events take

place in the neuron system.

Tangan dijauhkan apabila tercucuk oleh jarum tajam. Berikut peristiwa yang berlaku dalam sistem neuron.

Which of the following is the correct sequence of the events that take place? Yang manakah urutan berikut adalah betul mengikut peristiwa yang berlaku? A P Q R S

B Q S R P

C R Q S P

D Q R P S

P -Activation of muscle

Otot diaktifkan

Q - Activation of receptor

Reseptor diaktifkan

R - Passage of impulses along efferent neuron

Laluan impuls sepanjang neuron eferen

S - Passage of impulses along afferent neuron

Laluan impuls sepanjang neuron aferen

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38 The diagram shows the position of a foetus in the uterus. Rajah menunjukkan kedudukan fetus dalam uterus.

Which of the following substances will pass through P to the foetus? Antara bahan berikut yang manakah merentasi P menuju ke fetus ?

A Fatty acids C Ferum ion’s Asid lemak Ion ferum

B Alcohol D Urea Alkohol Urea

39 Which diagram shows not a pair of alleles ? Rajah yang manakah menunjukkan sepasang alel ?

P

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40

The diagram shows a cross between a normal grey-coloured mouse and an albino mouse.

Rajah menunjukkan kacukan antara seekor tikus kelabu yang normal dan seekor tikus albino

Parents Grey mouse

AA

x Albino mouse

aa

Gametes A a

F1 genotype

Aa

Which genotypes would result from a cross between the F1 mouse and an albino mouse?

Manakah genotip hasil daripada kacukan antara tikus F1 dan tikus albino?

A Aa and aa C Aa only

B AA and Aa D AA only

41

In an experiment, several pieces of potato were placed in sucrose solutions of different concentrations. The weight changes were then plotted onto graphs.

Which graph shows the weight changes correctly?

Dalam satu eksperimen, beberapa jalur kentang direndam ke dalam larutan sukrosa yang berlainan kepekatan. Perubahan berat diplotkan ke graf.Graf manakah yang menunjukkan perubahan berat yang betul.

A

B

C

D

Sucrose concentration

We

igh

t o

f po

tato

sa

mp

les


We

igh

t o

f po

tato

sa

mp

les


We

igh

t o

f po

tato

sa

mp

les


We

igh

t o

f po

tato

sa

mp

les

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42 The graph shows the change in air pressure in the alveolus during breathing. Graf menunjukkan perubahan tekanan udara di dalam alveolus semasa bernafas

What happens at stage Q? [Apakah yang berlaku pada peringkat Q?]

I Atmospheric air is inhaled Udara dari atmosfera disedut II Rib cage is raised Sangkar rusuk menaik III Diaphragm flattens Diafragma mendatar IV External intercostals muscles relax

Otot interkosta luar mengendur

A I and II only

B I, II and III only

C III and IV only

D I, II, III and IV

43

The following information shows the results of an experiment to determine the

energy value of cashew nuts.

Maklumat berikut menunjukkan keputusan eksperimen untuk menentukan nilai tenaga bagi kacang

Volume of water used

Isipadu air yang digunakan

= 20.0 cm3

Mass of cashew nuts

Jisim kacang gajus

= 0.4 g

Initial temperature of water

Suhu awal air

= 30°C

Final temperature of water

Suhu akhir air

= 70°C

Atmospheric pressure A

lveolu

s p

ressure

(m

m H

g)

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[ Spesific heat of water = 4.2J/g/°C]

The energy value of the cashew nuts is

Nilai tenaga kacang ialah

A 0.1 kJ / g C 8.4 kJ / g

B 2.0 kJ / g D 13.4 kJ / g

44

The following information shows the results of an activity carried out to investigate

the frequency of Mimosa pudica at a school field.

Maklumat berikut menunjukkan keputusan bagi aktiviti yang dijalankan untuk

menyiasat frekuensi Mimosa pudica di padang sekolah

Quadrat 1 2 3 4 5 6 7 8 9 10

Area covered

(m2)

0.01

0.23

0.04

0.15

0

0

0.81

0

0

0.02

The frequency of Mimosa pudica is

Frekuensi bagi Mimosa pudica ialah

A 13.5% C 60.0%

B 40.0% D 86.5%

45 The diagram shows an experiment set-up to study factors that affect the rate of photosynthesis. Rajah menunjukkan satu eksperimen untuk mengkaji faktor yang mempengaruhi kadar fotosintesis.

Which of the following will increase the rate at which gas bubbles are released in the experiment. Antara berikut yang manakah akan menambahkan kadar pembebasan gelembung udara ?

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A Using a waterbath at 60ºC Menggunakan kukus air pada 60ºC

B Placing a 60W bulb 20 cm from the Hydrilla sp

Letakkan mentol 60W pada 20cm dari Hydrilla sp

C Using 0.1% sodium hydrogen carbonate solution Meneggunakan sodium hydrogen karbonat 0.1%

D Replacing the Hydrilla sp with Elodea sp

Menggantikan Hydrilla sp dengan Elodea sp

46 The diagram shows the effect of human activity on the environment. Rajah menunjukkan kesan aktiviti manusia terhadap alam persekitaran.

Which of the following is the result of this activity? Antara berikut yang manakah akibat daripada aktiviti tersebut ? I Soil erosion and landslide Hakisan tanah dan tanah runtuh II Flooding Banjir III Climatic changes Perubahan iklim IV Extinction of flora and fauna Kepupusan flora dan fauna

A I and II only B III and IV only C I. III and IV only D I, II, III and IV only

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47

The diagram shows the pathway involved in detecting and responding to changes in the internal environment. Rajah menunjukkan laluan melibatkan pengesanan dan gerakbalas terhadap perubahan persekitaran dalam. X Y What are represented by X and Y?

X Y

A Afferent pathway Efferent pathway

B Efferent pathway Afferent pathway

C Effector Receptor

D Receptor Effector

48

Which of the following reasons explains the statement? Manakah berikut sebab bagi penerangan pernyataan di atas? A The antiserum becomes effective immediately. Antiserum berkesan dengan segera

B The antiserum kills many different kinds of bacteria. Antiserum membunuh bakteria berbagai jenis

C The effect of the immune serum is very long lasting. Kesan keimunan dari serum tahan lama

D The immune system is stimulated to produce antibodies. Sistem immunity dirangsang untuk menghasilkan antibody.

Passive immunity against tetanus is

acquired by injection with an antiserum.

Stimulus Stimulus

Central nervous system Sistem saraf pusat

Response Gerakbalas

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49

One gene has alleles R and r. Another gene has alleles Y and y. A male

heterozygous of both alleles is crossed with a female homozygous recessive for

both alleles

Which of the following are the probable alleles of the offspring. Gen mengandungi alel R dan r. Gen lain mengandungi alel Y dan y. Seorang lelaki heterozigot bagi kedua dua alel dikacukkan dengan seorang perempuan homozigot resesif bagi ke dua-dua alel tersebut. Manakah berikut adalah mungkin allel bagi anak mereka.

Alleles of the offspring

Alel bagi anak

A RRYY RRyy rrYY RrYY

B RrYy Rryy rrYy rryy

C rRyy rryy RRYy RrYY

D RRYY rryy rRyY Rryy

50

The diagram shows the level of antibodies in a patient’s blood after being immunized. Rajah menunjukkan aras antibody dalam darah pesakit selepas memperolehi imunisasi.

Which of the following is true about the immunity shown? Yang manakah berikut benar tentang keimunan tersebut?

Time (days)

Masa (hari) 2 4

Immunity level

Aras keimunan

8 10 12 14 6

First injection

Suntikan pertama

Second injection

Suntikan ke dua

Anti

bod

y c

once

ntr

atio

n i

n t

he

body

Kep

ekata

n a

nti

bod

y dala

m d

ara

h

SULIT 4551/1


29

I. It gives temporary protection Ia memberikan perlindungan sementara

II. Serum is injected into the patient’s body Serum disuntik ke dalam badan pesakit

III. It gives immediate immunity against the disease Ia memberikan keimunan segera bagi melawan sesuatu penyakit

IV. White blood cells are stimulated to produce antibody Sel darah putih dirangsang bagi menghasilkan antibodi

A. II and III only

B. I, II and III only

C. II, III and IV only

D. I, II, III and IV

END OF QUESTION

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