Intra 1 Science f2

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SMK SEREMBAN 2

NAME : _________________________________________ FORM : ___________________

UJIAN INTRA 1

SCIENCE FORM 2

YEAR 2011

1 HOUR 30 MINUTES

SECTION A ( 30 MARKS)

Answer all questions.

1. Which of the following sense

organs and their stimuli are

correctly paired ?

Sense

organStimulus

A Ear Sound

B Tongue Chemicals

C Eye Heat

D Skin Pressure

2. You are given two test tubes

containing vinegar and water.

Which of these senses can help to

identify the tube containingvinegar?

A. The sense of sight

B. The sense of touch

C. The sense of hearing

D. The sense of smell

3. Which of the following shows the

correct path taken by nerve

impulses as they travel to the brain?

A. Stimulus, receptor, nerve, brain

B. Receptor, stimulus, nerve, brain

C. Response, nerve, receptor, brain

D. Stimulus, receptor, response,

brain

4. Figure 1 shows a tongue. Which of

the following types of food is best

detected by the areas of the tongue

labelled S, T and U in Figure 1 ?

Figure 1

1



S T U

I LimePotato

chipsHoney

II PapayaPotato

chips

Lemon

III Pizza Rambutan Banana

A. I only

B. II only

C. III only

D. II and III only

5. Which of the following stimuli

cannot be detected by the skin ?

A. PainB. Heat

C. Pressure

D. Chemicals

6. Figure 2 shows the human tongue.

Figure 2

If the taste buds of a person at the

areas labelled U were damaged,

which of the following food cannot

be fully enjoyed by the person ?

A. Ice cream

B. Salted nuts

C. Orange

D. Bitter gourd

7. Diagram 1 shows a flow chart for

the path of light rays from an objectentering the eye.

Diagram 1

Which of the following

represents X, Y and Z ?

X Y Z

AVitreous

humour Eyes lens

Aqueous

humour

BAqueous

humour

Vitreous

humour Eyes lens

CAqueous

humour Eyes lens

Vitreous

humour

D Eyes lensAqueous

humour

Vitreous

humour

8. Which of the following stimuli

cannot be detected by skin ?

A. Touch

B. Pain

C. Light

D. Pressure

9. Which of the following sensory

organs can detect chemical

substances?

A. Eye and nose

B. Nose and tongue

C. Tongue and skin

D. Nose and ear

2



10. Which of the following statements

is correct ?

I. The fingertips are very sensitive

to touch.

II. Food must dissolve in saliva

before it can be tasted.

III. Smell receptors are found on

the base of the nasal cavity.

A. I, II, III

B. I, II only

C. II, III only

D. I only

11. Table 1 shows the part of the eye

and their functios.

Part of

the eye

Function

P Controls the size of

the pupil

Q Maintains the

shape of the

eyeball

R Holds the lens in

position

S Prevents the

reflection of lightin the eye

Which of the following parts

represents P, Q, R and S ?

P Q R S

A IrisVitreous

humour Cornea

Retina

B Iris Vitreoushumour

Suspenso

ryligament

Choroid

C

Suspenso

ry

ligament

Cornea Iris

Pupil

D Choroid Retina PupilVitreous

humour

12. Diagram 2 shows the path of sound

waves in the mechanism of hearing.

Diagram 2

P Q R

AAuditory

canal Cochlea Ossicles

BAuditory

canalOssicles Cochlea

COval

window

Auditory

canal

Eustachian

tube

DEustachian

tubeCochlea

Semicircular

canals

13. A student looks at an insect using

magnifying glass. Which of the

following characteristics of the

image are formed on the retina of

the student’s eye?

A. Virtual, inverted, smaller

B. Virtual, upright, smaller

C. Real, inverted, smaller

D. Real, upright, enlarged

3



14. We are advised not to dig our ears

with sharp and hard objects to

prevent from damaging the

A. Ossicles

B. Cochlea

C. Eardrum

D. Semicircular canal

15. Which of the following eye defect

is caused by the irregular curvature

of the cornea ?

A. Short-sightedness

B. Astigmatism

C. Long-sightedness

D. Night blindness

16. Which part of the ear and its

function is correctly matched ?

Part Function

A Ear pinnaDirects soundwaves to the

cochlea

B OssiclesMagnify the

sound vibration

CAuditory

canal

Sends nerve

impulses to the

brain

DOval

window

Helps the body to

maintain balance

17. Figure 3 shows a straw appear in a

glass of water.

Figure 3

Why does the straw appear to be

bend in the water ?

A. Light is refracted

B. Light is reflected

C. Light is dispersedD. Water is refracted

18. Which of the following diagrams

shows the reflection of light from

the surface of a mirror ?

19. Figure 4 shows two defects of

vision. Which type of lens can be

used to correct them ?

Figure 4

P Q

A Concave Concave

B Concave Convex

C Convex Convex

D Convex Concave

20. What happens when an image falls

on the blind spot of the eye ?

4



A. A small inverted image is

formed

B. A large upright image is formed

C. A blurred image is formed

D. No image will be formed

21. Which statement is not true about

sound and hearing ?

A. Sounds are produced by

vibrations.

B. A person cannot hear clearly if

his eardrum is perforated.

C. The direction from which a

sound wave comes can be

changed by refraction.

D. Bats can detect sound of a much

higher frequency than humans.

22. Figure 5 shows a deer.

Figure 5

What is the advantage of having the

deer’s type of vision ?

A. A wider scope of vision

B. Able to estimate distance more

accurately

C. Able to see magnified images

D. Able to see distant objects more

clearly

23. Figure 6 shows a light ray travels

from medium P to medium Q.

Figure 6

Which of the following pairs bestrepresents medium P and medium

Q ?

Medium P Medium Q

A. Glass Air

B. Air Glass

C. Air Plastic

D. Vacuum Ethanol

24. The inner wall of a hall is usually

covered with soft materials. What

is the purpose of doing this ?

5



A. To make the music more

melodious

B. To increase the pitch of the

sound

C. To absorb and prevent the

reflection of sound

D. To reflect the sound so that the

sound can be heard

25. Which of the following is one of

the uses of reflection of sound ?

A. Reflection of the sound by the

wall of the hall so that louder

sound can be heard

B. To estimate the depth of seas

C. To make the music more

melodious

D. To transmit radio waves

26. Which of the following defects of

vision is due to the eye lens being

too thin or the eyeball being too

short ?

A. Astigmatism

B. Colour-blindness

C. Short-sightedness

D. Long-sightness

27. Which of the following is

associated with the given

information ?

A. Monocular vision

B. Stereoscopic vision

C. Optical illusionD. Long-sightedness

28. Figure 7 shows a plant responding

to touch. Why is it doing so ?

29. Which part of a plant shows

positive geotropism ?

A. Petal

B. Shoot

C. Stem

D. Root

6

Can see three-dimensionalobjects

Estimate position and

distance

of objects more accurately

Scope of vision is narrow

• Shoots grow towards the stimulus

• Enable the plant to obtain sunlight

Figure 7



30. The information above shows a

type of response of a plant to a

stimulus. Which of the following is

the response ?

A. Phototropism

B. Geotropism

C. Thigmotropism

D. Hydrotropism

I. To obtain support

II. To obtain more sunlight

III. To obtain water

A. I and II onlyB. I and III only

C. II and III only

D. I, II and III

SECTION B ( 20 MARKS)

Answer all questions.

1. Figure 8 shows a cross section of the human skin

Figure 8

(a) Label the receptors X, Y and Z using the following words.

7Pressure receptor Touch receptor Pain receptor



[3 marks]

(b) Based on the information below, label and name P and Q in Figure 8..

[2 marks]

(c) State two functions that affect the sensitivity of the skin.

1.____________________________________________________________________

2.____________________________________________________________________

[2 marks]

2. Figure 9 shows the structure of the human eye.

Figure 9

(a) Name the parts labelled P and R.

_____________________________________________________________________

_____________________________________________________________________

[2 marks]

(b) What is the function of the part labelled Q ?

8

P – a layer consisting of blood capillaries, sweat glands and nerve endings

Q – a very thin layer made up of dead cells



_____________________________________________________________________

[1 mark]

(c) In Figure 9, which part of the eye is the yellow spot ?

_____________________________________________________________________

[ 1 mark]

(d) Name two types of vision defect.

_____________________________________________________________________

_____________________________________________________________________

[2 marks]

(e) Name one device invented to overcome the limitations of sight.

_____________________________________________________________________

[1mark]

3. Some seeds which have been soaked overnight, were placed in a beaker containing

some wet sawdust as shown in Figure 10. The beaker is then placed inside a box

which has a small window at its side.

Figure 10

(a) What is the aim of this experiment?

_____________________________________________________________________

[1 mark]

(b) Describe how the plants in Figure 10 respond to light?

_____________________________________________________________________

_____________________________________________________________________

9



[2 marks]

(c) Why is this response to light important to the plant

_____________________________________________________________________

[1 mark]

(d) What can you conclude from this experiment?

_____________________________________________________________________

[1 mark]

(e) State the tropism for this experiment.

_____________________________________________________________________

[1 mark]

Prepared by : Checked by :

______________________ ______________________

(Siti Nur Dalila bt Ab Hadi) (Pn. Nurul Niza bt Sidik )Science Teacher Ketua Panitia Sains

Checked by : Verified by :

_____________________ ______________________

(Pn. Esah bt Manap) (Pn. Hjh Nurul Azmi bt Zaini)

Head of Science and Mathematics GPK 1

Department SMK Seremban 2

10

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Intra 1 Science f2

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