SMK TAMAN SELESA JAYA 2UJIAN 1SAINS

TINGKATAN 5

NAMA:

TINGKATAN:

1 What is meant by body coordination?Apakah maksud koordinasi badan?

A To coordinate body’s growthMenyelaras pertumbuhan badan

B To coordinate position and balance of the bodyMenyelaras kedudukan dan keseimbangan badan

C To coordinate body’s responses towards any stimuliMenyelaras gerak balas badan terhadap sebarang rangsangan

D To coordinate secretion of hormone by endocrine glandMenyelaras perembesan hormon oleh kelenjar endokrin

ARAHAN: JAWAB SEMUA SOALAN DALAM RUANGAN YANG DISEDIAKAN

2 The diagram shows a neuron.Rajah menunjukkan satu neuron

What is labelled X?Apakah bahagian yang berlabel X?

A AxonAkson

C DendronDendron

B DendriteDendrit

D Myelin sheathSalut Mielin

3 Diagram shows the structure of a neurone. Which part A, B, C or D is the axon?Rajah menunjukkan struktur suatu neuron. Antara bahagian A, B, C dan D, yang manakah adalah akson?

X

4 The following information shows the parts that are involved in a reflex arc.Maklumat berikut menunjukkan bahagian yang terlibat dengan arka refleks.

Which of the following impulse pathways is correct?Antara yang berikut, laluan impuls yang manakah betul?

A P Q R S T C R P S Q T

B T S R P Q D T S P R Q

5 Which activity involves proprioceptor?Aktiviti manakah yang melibatkan reseptor regang?

A SingingMenyanyi

C CyclingBerbasikal

B ReadingMembaca

D ThingkingBerfikir

6 Diagram below shows the structure of human brain. Which part controlled involuntary action. Rajah menunjukkan struktur otak manusia. Bahagian otak yang manakah mengawal tindakan luar kawal?

7 Fahmi picks some apples. What type of action is this?Fahmi memetik beberapa biji epal. Apakah jenis tindakan itu?

A Reflex actionTindakan reflex

C A voluntary actionTindakan terkawal

B A capillary actionTindakan kapilari

D An involuntary actionTindakan luar kawal

8Diagram shows the endocrine glands of a teenage girl. She has an irregular menstrual cycle. Which organ A, B, C or D, is malfunctioning?Rajah menunjukkan kelenjar endokrin bagi seorang remaja perempuan. Dia mengalami kitar haid yang tidak teratur. Antara organ A, B, C dan D, yang manakah tidak berfungsi dengan baik?

9 Which of the following pairs of nervous coordination and hormone coordination is correctly matched?Antara padanan koordinasi saraf dan koordinasi hormon berikut, yang manakah betul?

Nervous coordinationKoordinasi saraf

Hormone coordinationKoordinasi hormon

A Long-term effectKesan jangka panjang

Short-term effectKesan jangka pendek

B Slow responseGerak balas lambat

Immediate responseGerak balas serta merta

C Consist of nervesTerdiri daripada saraf

Consist of ductless glandsTerdiri daripada kelenjar tanpa duktus

D Widespread target areaKawasan sasaran yang luas

Limited target areaKawasan sasaran terhad

10 Diagram below shows an injured elbow. /Rajah di bawah menunjukkan siku yang terluka.

Which process will heal the elbow?Proses manakah yang akan menyembuhkan siku tersebut?

A MeiosisMeiosis

C Fertilization Persenyawaan

B MitosisMitosis

D MutationMutasi

11 A human sperm containsSperma manusia mengandungi

A 22 + X chromosomes22 + X kromosom

C 44 + X chromosomes44 + X kromosom

B 22 + XY chromosomes22 + XY kromosom

D 44 + Y chromosomes44 + Y kromosom

12.

Which of the following is caused by gene mutation?Antara yang berikut, yang manakah disebabkan oleh mutasi gen?

A Down’s syndromeSindrom Down

C Turner’s syndromeSindrom Turner

B Colour blindnessButa warna

D Klinefelter’s syndromeSindrom Klinefelter

13 The diagram shows a graph of the heating of matter.Rajah menunjukkan graf pemanasan jirim.

At which stage does matter exist only in solid and liquid state?Pada peringkat manakah jirim itu hanya wujud dalam bentuk pepejal dan cecair?

A OP C QRB PQ D ST

14 The diagram shows the changes in the states of matter.Rajah menunjukkan perubahan keadaan zarah

Which of the following A, B, C or D represents boiling process?Yang manakah A, B, C atau D berikut mewakili proses pendidihan?

T

SR

QP

O

Temperature (Suhu) oC

Time (Masa)/min

Boiling

Point

Takat

C

BA

Liquid

cecair

Gas

Gas

Solid

pepejal

D

15 The diagram shows the structure of atom X. Rajah menunjukkan struktur atom X.

Proton number and nucleon number of X areNombor proton dan nombor nukleon X ialah

Proton numberNombor proton

Nucleon numberNombor nukleon

A 3 3B 3 4C 4 10D 3 7

16 The diagram shows a type of microorganism.Gambar rajah menunjukkan sejenis mikroorganisma.

What is the microorganism?Apakah mikroorganisma tersebut?

A YeastYis

C EuglenaEuglena

B MucorMukor

D ParameciumParamesium

17 The diagram below is a graph showing the relationship between the number of bacteria colonies and temperature.Rajah di bawah ialah graf yang menunjukkan hubungan antara bilangan koloni bakteria dan suhu.

Key

PetunjukElectron Proton Neutron

SporangiumSporagium

HyphaHifa

What is the optimum temperature for the growth of the bacteria?Berapakah suhu optima bagi pertumbuhan bakteria itu?

A 0°C C 35°CB 30°C D 60°C

18 Meat that is kept in the fridge retains its freshness becauseDaging yang disimpan dalam peti sejuk dapat dikekalkan kesegarannya kerana

A the enzymes are destroyedenzimnya telah dimusnahkan

B the microorganisms are killedmikroorganisma telah dibunuh

C the activities of microorganisms increaseaktiviti mikroorganisma meningkat

D the growth rate of microorganisms is slowed downkadar pertumbuhan mikroorganisma diperlahankan

19 The diagram below shows the apparatus set-up for an experiment.Rajah di bawah menunjukkan susunan radas bagi satu eksperimen.

What is microorganism X?Apakah mikroorganisma X?

A YeastYis

C EuglenaEuglena

B AmoebaAmeba

D ParameciumParamesium

20 Which of the following diseases is caused by bacteria?Antara penyakit berikut, yang manakah disebabkan oleh bakteria?

A AIDSAIDS

C MalariaMalaria

B DengueDenggi

D TuberculosisTuberkulosis

Answer sheet/ Lembaran jawapanCircle the correct answer / Bulatkan jawapan yang betul.

1 A B C D 11 A B C D

2 A B C D 12 A B C D

3 A B C D 13 A B C D

4 A B C D 14 A B C D

5 A B C D 15 A B C D

6 A B C D 16 A B C D

7 A B C D 17 A B C D

8 A B C D 18 A B C D

9 A B C D 19 A B C D

10 A B C D 20 A B C D

Bahagian B1 A student conducted an experiment to study the continuous variation of leaves. The diagram

below shows one of the leaves plucked from a tree.Seorang murid menjalankan satu eksperimen untuk mengkaji variasi selanjar pada daun. Rajah di bawah menunjukkan sehelai daun yang dipetik daripada sebatang pokok.

(a) Measure and write down the length of the leaf.Ukur dan tulis panjang daun tersebut.

…………………………………. cm [1 mark]

(b) Table 2.1 below shows the lengths, in cm, of 20 leaves plucked from the same tree.Jadual 2.1 menunjukkan panjang, dalam cm, bagi 20 helai daun yang dipetik daripada pokok yang sama.

2.0 3.8 5.5 3.4 3.5

5.5 3.9 4.7 3.5 4.5

3.7 1.6 3.6 3.6 3.6

1.9 3.4 4.8 4.8 5.2Table 2.1Jadual 2.1

Based on Table 2.1, complete Table 2.2Berdasarkan Jadual 2.1, lengkapkan Jadual 2.2.

Length of leaf interval (cm)Julat panjang daun (cm)

0.1 – 2.0 2.1 – 4.0 4.1 – 6.0

Number of leavesBilangan daun

Table 2.2Jadual 2.2

[2 marks]

(c) Based on Table 2.2, draw a histogram to show the number of leaves against the lengths of leaves.Berdasarkan Jadual 2.2, lukis satu histogram untuk menunjukkan bilangan daun melawan panjang daun.

[2 marks]

2 Diagram 3 shows an experiment to study the effect of impurities on the freezing point of distilled water.Rajah 3 menunjukkan eksperimen untuk mengkaji kesan bendasing ke atas takat beku air suling.

(a) (i) Based on the above experiment , what is your observation of theThermometer reading ? Berdasarkan eksperimen di atas, apakah pemerhatian anda pada bacaan termometer?

............................................................................................................................. [1 mark]

(ii) What is the thermometer reading in Diagram 3.2 ?Apakah bacaan termometer pada Rajah 3.2?

.....................................................................................0 C

[1 mark]

(b) State the variables in this experiment.Nyatakan pemboleh ubah dalam eksperimen ini

(i) Manipulated variable Pemboleh ubah yang dimanipulasikan

..............................................................................................................................

[1 mark] (ii) Responding variable Pemboleh ubah yang bergerakbalas

Diagram 3.1

Rajah 3.1

Diagram 3.2

Rajah 3.2

Distilled water

Air suling

Ice

Air batu

Distilled water

Air suling

+ common salt garam biasa

Thermometer

Termometer

..............................................................................................................................

[1 mark](c) State one inference for this experiment.

Nyatakan satu inferens dalam eksperimen ini

.......................................................................................................................................

[1 mark]3 Diagram below shows a process of cell division.

Rajah di bawah menunjukkan satu proses pembahagian sel.

(a)

(i) Name the type of process shown in the above diagram.Namakan jenis proses yang ditunjukkan dalam rajah di atas

……………………………………………………………………………………………….[1 mark]

(ii) State the importance of the process in 2(a)(i)Nyatakan kepentingan proses di 2(a)(i)

……………………………………………………………………………………………….[1 mark]

(b)

(i) State the process that is occurring in Stage M.Nyatakan proses yang berlaku pada Peringkat M.

……………………………………………………………………………………………….[1 mark]

(c) How many daughter cells are produced at the end of Division II in the above diagram?Berapakah bilangan sel anak yang terhasil pada akhir Pembahagian II dalam rajah di atas?

……………………………………………………………………………………………………..[1 mark]

(d)

State one part of plant that undergo this process.Nyatakan satu bahagian tumbuhan yang menjalani proses ini.

…………………………………………………………………………………………………….. [1 mark]

4 A group of officers from the Health Department were asked to control dengue fever in a residential area. Explain how they could overcome the problemSekumpulan pegawai dari Jabatan Kesihatan diarahkan untuk mengawal demam denggi di satu kawasan perumahan. Huraikan bagaimana mereka dapat mengatasi masalah ini.Your answer should include the following:Jawapan anda hendaklah mengandungi perkara berikut:

(i) Identify the problemMengenal pasti masalah

[1 mark](ii) Clarification of the problem

Penjelasan masalah [1 mark]

(iii) Suggest three methods to solve the problemCadangkan tiga kaedah untuk menyelesaikan masalah itu

[3 marks]