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SOLAF 2014 BIOLOGI MODUL 9

 A group of students carried out an experiment to study the effect of air

movement

on the rate of transpiration using a potometer shown in Diagram 1.1

The apparatus was placed on the laboratory table under a moving fan at

speed 5. The stopwatch is started when the initial air bubble position is set

at P or zero as in the Diagram 1.1. The time ta!en for the air bubble to

move a distance of 1"cm from P to # is recorded in table 1.$.

The whole experiment is repeated by placing the apparatus under a moving

fan at speed % and then with the fan off. &ach time the air bubble is

returned to its original position 'point P( before starting the experiment. Table

1.$ shows the results of the experiment.

Sekurnpulan murid telah menjalankan ekperimen untuk men!kaji kean

 per!erakan udara ke ata kadar tranpirai rnen!!unakan p"t"meter #an!

ditunjukkan dalam rajah 1$1

%ada itu diletakkan di ata meja makmal di &a'ah per!erakan kipa

den!an kelajuan ($ )am randik dimulakan apa&ila kedudukan !elem&un!

udara &erada di titik *atau i+ar, eperti diditetapkan dalam rajah$ Maa

untuk !elem&un! udara &er!erak 10 -m dari titik * ke . direk"d dalam

)adual 1$2 

/kperimen ini diulan! den!an meletakkan rada di &a'ah kelajuan kipa

dan eterun#a ketika kipa ditutup$ Setiap kali, kedudukkan !elem&un!

udara dikem&alikan kepada kedudukan aaln#atitik * e&elum memulakan

ekperimen$

)adual 1$2 menunjukkan keputuan ekperimen$

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SOLAF 2014 BIOLOGI MODUL 9

Diagram 1.1 ) *a+ah 1.1

,an -peed

elajuan ipa

bservation

*emerhatian

Time ta!en for the air bubble to

move a distance of 1" cm 'min(

Maa untuk !elem&un! udara

&er!erak 10 -m min

5/////////

%

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"

ff 

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SOLAF 2014 BIOLOGI MODUL 9

'Tertutup(

Table 1.$

)adual 1$2 

'a( *ecord the time ta!en for the air bubble to move a distance of 1" cm in Table

1%ek"d maa #an! diam&il untuk !elem&un! udara &er!erak pada jarak

10-m dalam )adual 1$

0% mar!s

'b(

'i(

2ased on Table 1.$ state two different observations can be made

Berdaarkan )adual 1$2, n#atakan dua pemerhatian #an! &er&e5a #an!

&"leh di&uat$

bservation 13

Pemerhatian 13

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//...

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//...

bservation $3

Pemerhatian $3

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.

0% mar!s

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SOLAF 2014 BIOLOGI MODUL 9

'b(

'ii(

-tate the inferences from the observations in 4 'b('i(.

3#atakan in+eren daripada pemerhatian di 1&i$

4nference from observation 13

In+eren daripada pemerhatian 16

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4nference from observation $3

In+eren daripada pemerhatian 26

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SOLAF 2014 BIOLOGI MODUL 9

'c( omplete Table 1.% based on this experiment.

6eng!ap!an 7adual 1.% berdasar!an e!sperimen ini.

8ariable*em&"letu&ah

9ethod to handle the variable7ara men!endali pem&"lehu&ah

9anipulated variable

*em&"lehu&ah dimanipulaikan

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*esponding variable

*em&"lehu&ah &er!erak &ala

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onstant variable

*em&"lehu&ah dimalarkan

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Table 1.%)adual 1$

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SOLAF 2014 BIOLOGI MODUL 9

'd( -tate the hypothesis for the this experiment.

3#atakan hip"tei &a!i ekperimen ini$

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'e('i(

ontruct a table and record all the data collected from Table 1.$.

:our table should have the following titles3

Bina atu jadual dan rek"dkan emua data #an! dikumpul dari )adual 1$2$

)adual anda hendaklah men!andun!i tajuk8tajuk &erikut6

• -peed of fan

  elajuan kipa

•  Time ta!en for the air bubble to move a distance of 1" cm

Maa untuk !elem&un! udara &er!erak 10 -m

• *ate of transpiration

adar tranpirai

 Rateof transpiration= Distance PQ

Time¿

(

 Kadar Transpirasi=Jarak PQ Masa

¿(

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SOLAF 2014 BIOLOGI MODUL 9

0% mar!s

'ii( ;se the graph paper provided on page < to answer this =uestion.

;sing the data in 1'e('i( draw a graph on the rate of transpiration against

the speed of fan.

>una !ertas graf yang disedia!an di halaman < untu! men+awab soalan ini.

9engguna!an data di 1'e('i( lu!is graf bagi !adar transpirasi melawan

!ela+uan !ipas.

0% mar!s

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SOLAF 2014 BIOLOGI MODUL 9

'f( 2ased on the graph in 1'e('ii( state the relationship between the rate of

transpiration and the speed of fan .&xplain your answer.

Berdaarkan !ra+ di 1eii, n#atakan hu&un!an antara kadar tranpirai

den!an kelajuan kipa$

eran!kan ja'apan anda$

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SOLAF 2014 BIOLOGI MODUL 9

0% mar!s

'g( 2ased on the result of this experiment state the operational definition for

transpiration.

Berdaarkan keputuan ekperimen ini, n#atakan de+inii e-ara "perai

untuk tranpirai .

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'h( Another group of students carried out the same experiment by using a shoot

with less leaves at fan speed 5. Predict the rate of transpiration

&xplain your prediction.

Sekumpulan murid #an! lain menjalankan ekperimen #an! ama den!an

men!!unakan pu-uk tum&uhan #an! &ilan!an daun #an! kuran! pada

kelajuan kipa ($ %amalkan kadar tranpirain#a

eran!kan ramalan anda$

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SOLAF 2014 BIOLOGI MODUL 9

The following is a list of materials and apparatus used in this experiment to

study the effect of air movement on rate of transpiration.

omplete Table 1.? based on the list given above

6eng!ap!an 7adual 1.? berdasar!an senarai yang diberi!an di atas

9aterials

2ahan

 Apparatus

*adas

Table 1.?

7adual 1.?

0% mar!ah

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  -topwatch ,an apillary tube

  7am randi! @ipas Tiub !apilari

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SOLAF 2014 BIOLOGI MODUL 9

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