kelantan biology paper 2 question

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4551/1 @2008 [Lihat sebelah]

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4551/3 Biologi

Kertas 3 Oktober 2008 1½ jam

PKPSM

PEPERIKSAAN PERCUBAAN SPM 2008

BIOLOGY

Kertas 3

Satu jam tiga puluh minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU

Untuk Kegunaan Pemeriksa

SOALAN Markah

penuh

Markah

diperolehi

1

33

2

Respons 15

Laporan

2

JUMLAH

Kertas soalan ini mengandungi 11 halaman bercetak

1. Kertas soalan ini adalah dalam Bahasa

Inggeris.

2. Calon dikehendaki membaca maklumat

di halaman 2.

Name:………………………………………………… Form :………………………………………………….

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Answer all questions. Jawab semua soalan.

The time suggested to complete each question is 45 minutes.

Masa yang dicadangkan untuk menjawab semua soalan ialah 45 minit. QUESTION 1 A group of biology students carried out an experiment to determine the content of carbon dioxide in exhaled air of an athlete after three different types of vigorous activities: cycling, swimming and running. Each activity was done for 20 minutes and between the activities there is an hour rest. A J-tube is used in this experiment. Sekumpulan pelajar biologi menjalankan satu eksperimen untuk menentukan kandungan karbon dioksida dalam udara hembusan seorang ahli sukan, selepas menjalankan tiga aktiviti cergas: berbasikal, berenang dan berlari. Setiap aktiviti dilakukan selama 20 minit dan di antara setiap aktiviti ia diberi rehat selama satu jam. Tiub-J digunakan dalam eksperimen ini. Diagram 1 shows the initial length of air column in J-tube is 6.4 cm before potassium hydroxide (KOH) solution is used. The function KOH is to absorb carbon dioxide gas. Rajah 1 menunjukkan panjang awal turus udara dalam tiub-J iaitu 6.4 cm sebelum kalium hidroksida (KOH) digunakan. Fungsi KOH ialah untuk menyerap gas karbon dioksida.

6.4 cm

DIAGRAM 1 / RAJAH 1

Air column Turus udara

J-Tube Tiub-J

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Diagram 2 shows the final length of air column in J-tube after treatment with potassium hydroxide (KOH) . Rajah 2 menunjukan panjang akhir turus udara dalam tiub J selepas dirawat dengan kalium hidroksida (KOH).

Type of vigorous activities

Jenis aktiviti cergas.

Final length of air column after treatment with KOH (cm)

Panjang akhir turus udara selepas dirawat dengan KOH (cm)

Cycling/ Berbasikal

Swimming / Berenang

Running/ Berlari

(a) In diagram 2, record the final length of air column in J-tube after treatment with

potassium hydroxide.

Dalam rajah 2, catatkan panjang akhir turus udara selepas dirawat dengan

kalium hidroksida.

DIAGRAM 2/ RAJAH 2

Air column / Turus udara

Air column /Turus udara

Air column / Turus udara

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[3 marks] (b)(i) Based on Diagram 2, state two observations from this experiment. Berdasarkan Rajah 2, nyatakan dua pemerhatian daripada eksperimen ini. ………………………………………………………………………………………………

……………………………………………………………………………………………...

………………………………………………………………………………………………

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[3 marks]

(ii) State the inferences which corresponds to the observations in (b)(i) Nyatakan inference yang berkaitan dengan pemerhatian dalam (b)(i).

………………………………………………………………………………………………

……………………………………………………………………………………………...

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……………………………………………………………………………………………… [3 marks]

(c) Complete Table 1 based on this experiment. Lengkapkan jadual 1 berdasarkan eksperimen.

Variable

Pembolehubah

Method to handle the variable

Kaedah mengendalikan pembolehubah

Manipulated variable dimanipulasi

………………………...

………………………..

…………………………………………………………….

…………………………………………………………….

…………………………………………………………….

Responding variable bergerakbalas

………………………...

………………………..

…………………………………………………………….

…………………………………………………………….

…..…………………………………………………………

Controlled variable dimalarkan

………………………...

………………………..

…………………………………………………………….

…………………………………………………………….

……………………………………………………………. Table 1/ Jadual 1 [3 marks]

(d) State the hypothesis for this experiment.

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Nyatakan hipotesis eksperimen ini.

………………………………………………………………………………………………

……………………………………………………………………………………………...

………………………………………………………………………………………………

………………………………………………………………………………………………

[3 marks] (e)(i) Based on diagram 2, construct a table and record the result of the experiment which includes the following aspects: Berdasarkan rajah 2, bina satu jadual dan rekod keputusan eksperimen di mana mengandungi aspek berikut :-

• Type of vigorous activities Jenis aktiviti cergas

• Length of air column before and after treatment with KOH Panjang turus udara sebelum dan selepas rawatan dengan KOH

• Change in length of air column Perubahan panjang turus udara

• Percentage of carbon dioxide Peratus karbon dioksida

Change in length of air column

Percentage of carbon dioxide = x 100% Initial length of air column

Perubahan panjang turus udara x 100% Peratus karbon dioksida =

Panjang awal turus udara

[3 marks] ii) Draw a bar chart to show percentage of carbon dioxide against activities on the graph paper provided. Lukis graf bar untuk menunjukkan peratus karbon dioksida melawan aktiviti cergas pada kertas graf yang disediakan.

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[3 marks]

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f) Based on a bar chart, explain the relationship between type of activity and the percentage of carbon dioxide released ? Berdasarkan graf bar , terangkan perhubungan antara jenis aktiviti dan peratus pembebasan karbon dioksida?

………………………………………………………………………………………………

……………………………………………………………………………………………...

………………………………………………………………………………………………

……………………………………………………………………………………………… [3 marks]

g) Running activity is repeated by increasing the time to 40 minutes. Predict the

percentage of carbon dioxide released. Aktiviti berlari diulang dengan meningkatkan masa kepda 40 minit. Ramalkan peratus karbon dioksida yang dibebaskan.

………………………………………………………………………………………………

……………………………………………………………………………………………...

………………………………………………………………………………………………

……………………………………………………………………………………………… [3 marks]

(h) Based on this experiment, what can you deduce about exhaled air?

Berdasarkan eksperimen, apakah yang boleh disimpulkan dengan udara hembusan?

………………………………………………………………………………………………

……………………………………………………………………………………………...

………………………………………………………………………………………………

………………………………………………………………………………………………

[3 marks]

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(i) The following list is part of the apparatus and material used in this experiment.

Berikut adalah sebahagian senarai bahan dan radas yang diguna dalam eksperimen

Complete Table 2 by matching each variable with the apparatus and material used in this experiment.

Lengkapkan jadual 2 dengan memadankan setiap pembolehubah dengan bahan dan radas yang diguna dalam eksperimen ini.

Variable Apparatus Material

Manipulated ……………………….. ……………………….

Responding ………………………. ……………………….

Controlled ………………………. ……………………….

Table 2 / Jadual 2.

[3 marks]

J-tube, bicycle ,thermometer, potassium hydroxide solution, water, athlete. Tiub J, Basikal,thermometer, larutan kalium hidroksida, air, ahli sukan.

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QUESTION 2

Based on the above information, design an experiment to investigate whether light

intensity affects the rate of transpiration by using a potometer. The planning of

your experiment should include the following aspects:

Berdasarkan penyataan di atas, rekabentuk satu eksperimen untuk menyiasat

sama ada keamatan cahaya mempengaruhi kadar transpirasi dengan

menggunakan potometer. Perancangan eksperimen anda hendaklah termasuk

aspek-aspek berikut:

• Statement of problem Pernyataan masalah

• Objective of study

Objektif Kajian

• Statement of hypothesis Pernyataan hipotesis

• Variables Pembolehubah-pembolehubah

• List of materials and apparatus Senarai radas dan bahan

• Technique used Teknik yang digunakan

• Procedure of the experiment Prosedur eksperimen

• Presentation of data Persembahan data

• Conclusion Kesimpulan

[17 marks]

En. Hussain is a farmer. He plants vegetables such as tomatoes and

eggplants. In the afternoon, En. Hussain noticed that his vegetable plants

wilt. This phenomenon does not happen at night.

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END OF THE QUESTION

SPACE FOR ANSWERS

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SPACE FOR ANSWERS


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kelantan biology paper 2 question

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