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SMK ISKANDAR SI{AH JASIN MELAKA

UJIAN PENGESANAN MAC

TINGKATAN DUA 2006

SAINS

Kertas soalan ini mengandungi 30 soalan objektif dan 4 soalan subiektif.Jawab semua soalan. Kembalikan keseluruhan kertas soalan rni sefepas ujian ini tamat.

Kertas soalan ini mengandungi 10 halaman bercetak termasuk muka hadapan

OBJECTME SECT'Ofl

Which of the following organs react to

changes that occur in the immediate

environment of an organism?

A. Excretory organs

B. Sensory organs

C. Response organs

D. lmpulse organs

Which of these animals have the

strongest sense of hearing?

2.

3. Which seRses are needed to accurately detect the flavours of food?

A. Birds

B. Dolphins

C. Dogs

D. Humans

l l . Smel ll. Taste

A. land l l only

B. land l l l only

l l l . Sight

C. l l and l l l only

D. l , l l and l l l

4. What is the factor that influenced the skin's sensitivity to a stirnulus?

A. The type of stimulant

B. 'The thickness of its fat layer

C. The thickness of the dermis

D. The large number of receptors

Maker code Maker usage

SectionQuestion

no.Full mark Obtained

mark

Objective 1.30 30

Subjective

t )

2 4

a., aJ

4 8

JUMLAH 50x2=100

If

S. Which of the following sequences is correct for showing the pathway from stimulus to

response?

A. Stimulus ) brain ) sensory organ ) response

B. Stimulus ) braln ) sensory organ ) brain ) response

C. Stimulus ) sensory organ ) nerves ) brain -) nerves I response

D. Stimulus ) nerves +, brain ) sensory organ ) nerves ) response

6. Where are the receptors can be found in the skin?

A. ln the dermis C' ln the fat tissue

B. In the epiderrnis D. Besides the sweat glands

7. which sense does a blind person use to read Braille books?

A. Sense of sight C' Sense of touch

B. Sense of smell D' Sense of hearing

S.Whichofthefol |owingarethefunct ionsoftheskin?

l. lt Protects the bodY tissues

ll. lt is sensitive to touch, pain and temperature

lll. lt helps to control our body temperature

A. I and ll onlY C' l l and l l l onlY

B. I and l l l onlY D' l , l ! and l l l

L What stimulates the taste bud?

A. Saliva C' Solution in the saliva

B.Enzymesinthesa| ivaD.Sweetandsa|tytasteon|y

10. why are dogs always used to detect drugs in the airport?

" A. Dogs can taste drugs

B. Dogs alwaYs obeY their master

C. Drugs are not harmful to the dogs

D. Dogs have a very sensitive sense of smell

11. Why the sense of taste of a person suffering from flu is less sensitive?

A. the taste bud cells are damaged

B. chemicals cannot be detected by smell receptors

c. the nasal hairs are unable to detect the smell of food

D. the sense of taste is more sensitive than the sense of smell

12.

Figure 1

FigureT shows the cross section of a nose? which part is the smell sensory organ?

c. l l l

D. IV

Figure 2 shows the taste

sensitive to tamarind and

Figure 2

areas of human's tongue'

honeY?

Which areas are the most

A. l

B. l l

l3.Whichisthespecial featureinthenosewhichmakesthedetect ionofsme| lmore

efficient?

A. Bigger nasal Passages

B. Mucus which is very dilute

C. Nasal passages covered with hair

D. Nasal passages coated with mucus

14.

Tamarind Honey

L

L

A N

B M

L/ K

D K

15.

M

Figure 3Figure 3 shows the structure of the human ear. Which part that helps us maintainour sense of balance?A.L

B.M

16. Which of the following ear structures contain fluids?

c.ND.O

17.

A. Eardrum

B. Cochlea

l. stirrup

A. land l l only

B. land l l l only

18. Characteristic of R:

C. Eustachian tube

d,. D. Ovalwindow

ll. Hammer l l l . anvi l

C. l l and l l l only

D. l . l l and l l l

C. Auditory canal

D. Pinna

Which of the following structures that made up the ossicles?

* Shaped like funnel* Made of cartilage and skin*' Collects sound waves

What is R?

A. Eardrum

B. Ossicles

AB

C

Figure 4

Figure 4 shows the vertical section of the human eye.

controls the size of the pupil?

19 Which part of the eye

20.

21.

22.

23.

Figure 5

Figure 5 shows the vertical section of the human eye. Where the image of an

object falls on the figure above if a person can see?

Which of the following diagram shows the occurrence of long-sightedness?

Glass trlock

Light ray _

Angle of incidence

Figure 6

of an experiment. What does line AB ln the diagram

C. refracted ray

D. diffracted ray

c.D.

l l and l l l only

l , l l and l l l

Figure6showsadiagram

represent?

A. incident ray

B. reflected ray

A. I and l l only

B. I and l l l only

What are the characteristics of the image that formed in a plane mirror?

l. virtual ll. laterally inverted lll. smaller than the object

24. Which of the following figures shows the correct propagation of light rays from glass to

25 . Wr*Eh tr'trig fEltnttng inrtsumarfie sn b€ rnsd *o rnessurs $ T rnl d *efermstrwlmfu{y?

Figure z shows cell X rrvfrish is a typs sf hum*n mll

air?

A

E

1r

I t/1 '

d_*l

FItilH

E

v

tMia{ type of cell is X?

A Norva celiB Bone cell

Muscle cetlGamete sell

cs

Nonnal line

, Noimal line

Figure 2

27. Figure below shows a pendulum.

The time taken for the pendulum to make 20 complete swings in 40 seconds'

Calculate the time taken for one oscillation.

A. 0.5 s

B, 1.0 s

Figure below shows one type of cell.

Which of the organisms have this type of cell?

28.

C. 1.5 s

D. 2.0 s

lll. Earthworm

l l and l l l only

l , l l and l l l

l. spirogyra

A. I and ll only

B. land l l l only

A. 273 mm

B. 274 mm

ll. Fern

D.

29.

1 273, 276

3 274

4 277

Table 1

The results of an experiment to deterrnine the length

Tabte 7. What is the average length of the curve?

C. 275 mm

D 276 mm

of a curue is shown in

NAME:. . . . . . . - . . " .CLASS: '"""""

* Unicellular organism' *' Contains chloroPhYll

30. The details given above describes a certain organism. Which of the following could it be?

-

(3 tturk.t)

A Amoeba

B Chlamydomonas

C Paramecium

D Spirogyra

This question paper consists of 4 questions. Answer must be written on the space provided.

I Diagram sl tows; thc ccl l r l rganisat ion in t l te l tutnan lrocly.

E)

r ' i \

rEf

( i i i ) _

[-abel the stages i , i i , ancl i i i .

State the function of the following.

muscle cell

i l. white blood cell

(2 marks)

2 The experirnent in the diagrarn is carried out by a stuclent.

( i i)

(a)

(b)

I

-../

Mirror

\___-

N<irrrt l t l

(a) Label the following in diagram above'

i) angle of incidence (l Angle of reflection (y' (2 marlcs)

(b) what is the relationship between angle of incidence and angle of reflection'

(1 mark)

(c) Write one characteristic of the irnage formed by a plane minor'

(l mark)

3. Diagram shows the cross-section of the human skin'

(a) Which of the labels X' Y and Z represents the sweat gland?

(l mark)

State the function ofrecePtor'(b)

(c) Skin responds to a few stimuli' Name one stimuli'

(1 mark)

(l mark)

NAME:. . . . """"CLASS:""""" '

4 'Diagramshowstheapparatususedbyastudent indeterminingthevolumeof

different object. \

Stone

I I III

(a) Find the volume in the apParatus shown above'

t : I I :

Plasticine

lII.:..-...--...-------.-.-

(j marks)

to measure volume of liquid as shown in the

N

l0

3O

!o

to

to

ao

to

to

@

to

(b) Name the aPParatus used

diagram.(1 rnark)

(b) What is the volume of the stone?

(2 marlcs)

(c) What is the volume of the liquid used?

(2marlcs)

Prepared

Gn. Siti

END OF QUESTIONS

Verifed bY:,, nAhI'[-

itt*t{jte"#*;;;Paner)

Never sutender before You lose

Never saY lose before You win

Always think that You cotx do it

LastlY thank to God

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