p1f2 saja nak test

8/10/2019 p1F2 SAJA NAK TEST

1/26

C1-1cgdean201

2@smkdbd

Tarikh : ../../.

Bab 1 : DUNIA MELALUI DERIA KITA

1.1 Organ deria

1.1.1 Organ deria & fungsinya

A Lengkapkan pengurusan grafik dibawah dengan perkataan yang diberikan untuk

menunjukkan organ deria, rangsangan yang diterima & jenis deria yang terlibat

Cahaya Penglihatan Telingaata !ulit"au #asa Lidah $idung "unyi

Organ deria

%enis rangsangan yang diterima

"ahan kimia "ahan kimia entuhan

akit

Panas

ejuk

Pendengaran entuhan

akit

Panas

ejuk

%enis deria yang terlibat

B Lengkapkan 'arta alir di bawah tentang aliran impuls melalui saraf setelah rangsanganditerima oleh kulit

#eseptor (organ deria) Otak saraf *fektor (otot)

#angsangan araf impuls


2/26

C1-2cgdean2012@smkdbd

Tarikh : ../../.

1.2 Sense of Touch

1.+.1 !ulit

Tujuan(a) engenal pasti struktur kulit yang terlibat dalam pengesanan

rangsangan

(b) engenal pasti& menyatakan fungsi setiap jenis reseptor

"ahan Carta, model atau transparensi yang menunjukkan struktur kulit

Langkah

1 Perhatikan'arta, model atau transparensi yang menunjukkankeratan rentas kulit

2 "in'angkan dengan guru & rakanrakan anda tentang struktur kulit3 !enal pasti jenis reseptor yang terlibat dalam pengesanan

rangsangan dan label rajah tentang keratan rentas kulit manusia dibawah

Pemerhatian

-nalisis

1 amakan limajenis reseptor yang terdapat pada kulit

Pain , heat ,pressure , touch and cold re'eptors.

2 Padankan reseptor pada kulit dengan jenis rangsangan yang dikesan

#eseptor panas ejuk

#eseptor sejuk Panas

#eseptor sentuhan akit

#eseptor tekanan Tekanan

#eseptor sakit entuhan

3 amakan jenis reseptor yang terdapat dalam tisu adipos (lemak)

Pressure receptors

4 amakan jenis reseptor yang berada dekat dengan permukaan kulit

Pain receptor

5 amakan jenis reseptor yang menerima rangsangan apabila

seseorang diberikan suntikan

!esimpulan !ulit mempunyai reseptor yang peka terhadap

1. 4.

3.

2. 5.

6.

#eseptor panas #eseptor sentuhan #eseptor sejuk#eseptor sakit #eseptor tekanan araf

!eratan rentas kulit


3/26

C1-3cgdean201

2@smkdbd

Tarikh : ../../.

1.+.+ !epekaan kulit

Tujuanenunjukkan kepekaan kulit terhadap pelbagai rangsangan padabahagian badan yang berlainan

"ahan !adbod tebal, pen'ungkil gigi, pita selofan, jaluran kain

Langkah

1 ediakan bahan seperti yang ditunjukkan di sebelah kanan2 Tutup mata rakan anda dengan jaluran kain

3 Cu'u'k badan rakan anda di bahagianbbahagian yang berikutdengan satu atau dua pen'ungkil gigi

(a) hujung jari (e) lutut(b) belakang leher (f) tapak kaki

(') bibir (g) tapak tangan(d) siku (h) belakang telinga

4 inta rakan anda teka bilangan pen'ungkil gigi yang digunakan untukmen'u'uk bahagian tertentu di badannya

5 'atat jawapan rakan anda dalam jadual di bawah

Pemerhatian

Tandakan /0 untuk tekaan yang betul dan /0 sekiranya salah

"ahagian badan"ilangan pen'ungkil gigi !epekaan

(tinggi atau rendah)atu ua

$ujung jari"elakang leher

"ibir

iku

Lutut

Tapak kaki

Tapak tangan

"elakang telinga

-nalisis

1 yatakan duafaktor yang mempengaruhi kepekaan kulit

(a) Thickness of epidermis

(b) Number of receptors

3 -pakah hubungan antara ketebalan epidermis kulit dengan kepekaan

kulit terhadap rangsangan2

emakin thinner epidermis kulit, semakin kulit

terhadap rangsangan

3 -pakah hubungan antara bilangan reseptor dalam kulit dengan

kepekaan kulit terhadap rangsangan2

emakin reseptor di dalam kulit, semakin

kulit terhadap rangsangan

4 yatakan jenis resptor yang paling banyak digunakan oleh orang buta

!esimpulan

1 !epekaan kulit adalah differs di bahagian badan berlainan

2 !epekaan kulit bergantung padaketebalan epidermis dan

bilangan reseptor dalam kulit


4/26


Tarikh : ../../.

1.3 Sense of Smell

Tujuan(a) engenal pasti struktur hidung

(b) engenal pasti kedudukan sel deria bau

"ahan Carta, model atau transparensi yang menunjukkan struktur hidung

Langkah

1 Perhatikan'arta, model atau transparensi yang menunjukkankeratan rentas hidung

2 "in'angkan dengan guru & rakanrakan anda tentang struktur hidung3 !enal pasti kedudukan sel deria bau

3 3dentify the position of the sensory 'ells in the nose.

4 Label struktur hidung pada rajah di bawah

Pemerhatian

-nalisis

1 4hat is the sensory organ for smell2

Nose

2 ame the part of the nose that re'ei5es smell stimuli.

Smell receptors/Olfactory cells

3 4here are the re'eptors that are sensiti5e to smell stimuli lo'ated2

3n the upper part of the nasal 'a5ity.

4 The smell re'eptors are always dampened by mu'us. 4hat is the

fun'tion of the mu'us2

To enable chemical substances to dissolve in it and stimulate the

sensory 'ells.

5 4hy does our nose not fun'tion well when we ha5e a flu2

The smell receptors are 'o5ered by a layer of mucus .

6 Complete the flow 'hart below to show the smell pathway from

stimulus to brain.

!esimpulan The smell sensory 'ells are lo'ated in the nose.

1.

2.

3.

4.

Panduan:

araf

#eseptor bau

Lubang hidung#ongga hidung

!eratan rentas hidung


5/26

C1-5cgdean201

2@smkdbd

Tarikh : ../../.

1.4 Sense of Taste

Aim To identify parts of the tongue that are sensitive to different tastes

Material Vinegar sugar solution !ommon salt solution fever medi!ation dissolved in "ater

Apparatus #lean !up stra"s

$ro!edure

1 $la!e a drop of these solutions %"ith no spe!ifi!

se&uen!e' onto different parts of your partner(s

tongue as sho"n in the diagram on the right.

%a' Vinegar

%)' *ugar solution

%!' #ommon salt solution

%d' Medi!ine solution2 +n the ta)le )elo" re!ord "hi!h part of the tongue

is most sensitive to ea!h solution.

3 ,inse the mouth after tasting ea!h solution.

)servation,esult

Ti!/ %' for the tastes of the solutions "hi!h !an )e dete!ted )y the spe!ifi! parts of the

tongue. #ross out %' for tastes "hi!h !annot )e dete!ted.

$art of tongueTaste

0itter *our *"eet *alty

1

2

3

4

56

Analysis 1 *tate the taste of solutions in this a!tivity.

%a' Vinegar Sour %!' *ugar solution Sweet

%)' #ommon salt solution Salty %d' Medi!ine solutionBitter

2 hi!h tastes !an )e dete!ted )y the taste )uds on the tongue

Sour, sweet, salty and bitter

3 Are all parts of the tongue sensitive to the same taste

No

4 hy is it that a dry tongue !annot taste food "ell

Chemical substances in the food must dissolve in the saliva first )efore the taste )uds

!an dete!t tastes.

5 #omplete the flo" !hart )elo" to sho" the taste path"ay from the stimulus to the

)rain.


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Tarikh : ../../.

6 0ased on the results of the a!tivity fill in the eample of food and the taste "hi!h the

parts of tongue are sensitive to.

#on!lusionThe taste )uds on the tongue are sensitive to the taste of bitter sour salty andsweet .


7/26

C1-cgdean201

2@smkdbd

Tarikh : ../../.

1.5 Sense of Hearing

1.5.1 The ear

Aim To o)serve and identify ea!h part of the ear and its fun!tion

Material Models !harts or transparen!ies sho"ing the !ross-se!tion of the ear


$ro!edure

1 )serve the models !harts or transparen!ies sho"ing the !ross-se!tion of the ear.

2 +dentify ea!h part of the ear "ith help from your tea!her and friends.

3 a)el the diagram of the ear )elo".

)servation,esult

Analysis

1 hat happens to the eardrum "hen sound "aves hit it

It vibrates.

2 hi!h stru!ture is !onne!ted to the auditory nerve

Cochlea

3 7ame two stru!tures of the ear "hi!h do notplay a part in hearing.

Eustachian tube and semicircular canal

4 7ame the stru!ture "hi!h dete!ts vi)ration and !hanges it into nerve impulse.

Cochlea

5 hi!h part of the ear is distur)ed "hen a person suffers from seasi!/ness

Semicircular canal

#on!lusion The organ of hearing in a person is the ear

1.5.2 8earing me!hanism

9.

:.

4.

3.

a.

1.

2.

!.).

5.

6.

.


8/26

C1-:cgdean2012@smkdbd

Tarikh : ../../.

Part of the ear Function

#olle!ts and dire!ts sound "aves into the ear

#hannels sound "aves to the eardrum

Vi)rates "hen it is hit )y sound "aves

Amplify sound vi)rations

*ends vi)ration from the )ony ossi!les into the inner ear

#hanges sound vi)rations to nerve impulses

*ends nerve impulses to the )rain for interpretation

+nterprets the impulses as sound

Other part of the ear Function

;usta!hian tu)e ;&ualises the air pressure on )oth sides of the ear

*emi!ir!ular !anal #ontrols )ody )alan!e

1.6 Sense of Sight

;ar $inna

Auditory!anal

;ardrum

ssi!les

val "indo"

#o!hlea

Auditorynerve

0rain


9/26

C1-9cgdean201

2@smkdbd

Tarikh : ../../.

1.6.1 The eye

Aim To o)serve and identify ea!h part of the human eye

Material #harts models or transparen!ies sho"ing the !ross-se!tion of the human eye


$ro!edure

1 )serve the !harts models or transparen!ies sho"ing the !ross-se!tion of the humaneye.

2 +dentify ea!h part of the eye "ith your tea!her and friends.3 a)el the diagram of the eye given.

)servation,esult

Analysis

1 hat is the sensory organ of sightEye

2 a)el the front part of the eye.

#on!lusion The organ of sight in a person is the eye

1.6.2 8o" do "e see

Part of the eye Function

1.

2.

3.

4.

6.

.

:.

9.

5.

1


10/26

C1-1 The most sensitive area of the retina> #omprises !ells "hi!h dete!t light and generate impulses

Blind spot The part of the retina "hi!h is not sensitive to light

ra" the si@e of pupil in different situations and state the reason for your ans"er

#ornea

Aqueoushumour

Pupil

Lens

Vitreoushumour

Retina

Optic nerve

Brain


11/26

C1-11cgdean201

2@smkdbd

Tarikh : ../../.

1.6.3 The sight me!hanism

Ans"er the &uestions )elo" on the sight me!hanism in the human eye.

The diagram a)ove sho"s the light rays that are entering the eye.

1 *tate three !hara!teristi!s of the image formed on the retina.

Real, inverted and smaller than the obect

2 hat "ill happen to the image if the o)?e!t is moved a fe" metres awayfrom the eye

0e!omessmaller .

3 hat "ill happen to the eye lens if "e

%a' loo/ at nearo)?e!ts

0e!omes thic!er.

%)' loo/ at distanto)?e!ts

0e!omes thinner.


12/26


Tarikh : ../../.

1.7 Light & Sight

1..1 ,efle!tion

Aim To study the a!tion of the refle!tion of light )y a plane mirror Material A ray )o plane mirror ruler protra!tor plasti!ine "hite paper pen!il

$ro!edure

1. ra" a line A0

2. Bse plasti!ine to get plane mirror to stand verti!ally upright on

the line A0

3. ire!t a ray of light from the ray )o on to the plane mirror at

spe!ifi! angle as sho"n in the diagram

4. ra" in!ident ray C refle!ted ray on the "hite paper. ra" the

normal "hi!h is the perpendi!ular line to the mirror at the point of in!iden!e. $aste

your dra"ing in the spa!e provided

5. Measure the angle of in!iden!e %i' C the angle of refle!tion %r'

"ith the protra!tor. ,e!ord the reading in the ta)le6. ,epeat this a!tivity using different angles of in!iden!e

)servation,esult

Activity Angle of incidence (i) Angle of reflection (r)

1 25o

2 4

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