2 SULIT 4551/3 - · PDF file2 SULIT ... Area A is school science garden area while Area B is...
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Jawab Semua Soalan Answer all Question
Soalan 1 / Question 1
Saiz populasi merujuk kepada bilangan organisma yang terdapat dalam sesuatu habitat. Saiz
populasi boleh dihitung dengan kaedah perhitungan terus, namun kurang praktikal disebabkan
saiz ekosistem, bilangan organisma yang terlibat serta mobiliti organisma. Oleh itu, cara yang
lebih praktikal ialah dengan menggunakan satu sampel (bilangan kecil) organisma dalam sesuatu
ekosistem.
Sekumpulan pelajar ingin mengkaji kesan faktor kelembapan dan keamatan cahaya ke atas saiz
populasi siput Achatina fulica di kawasan sekolah. Bagi tujuan tersebut, dua kawasan telah
dipilih dan kaedah yang digunakan ialah kaedah tangkap, tanda, lepas dan tangkap semula.
Kawasan A adalah merupakan kebun sains sekolah manakala kawasan B adalah padang
sekolah. Kawasan kajian telah ditandakan dengan menggunakan tali, meliputi 2 m x 2 m.
Population size is referred to the number of organism lives in a habitat. Population size can be
calculated by direct counting method, but less practical due to the size of ecosystem, the number
of organism involved and the mobility of the organisms.
A group of students want to study the effect of humidity and light intensity factor to the size of
population of snails Achatina fulica at the school area. For that purpose, two areas have been
chosen and the method captures, mark, release and recapture is used. Area A is school science
garden area while Area B is school field. The studied area is marked with string, covering 2m x
2m area.
Rajah /Diagram 1
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Berikut adalah keputusan kajian tersebut.
The following are the results of the study.
Hari 1 ( 2 Jun 2015 ) jam 8.00 pagi. : Tangkapan pertama
Day 1 ( 2 June 2015 ) at 8.00 am : First captured
Rajah /Diagram 2
Hari 14 ( 15 Jun 2015 ) jam 8.00 pagi. : Tangkapan kedua
Day 14 ( 15 June 2015 ) at 8.00 am : Second captured
Rajah /Diagram 3
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Kawasan
Area
Bilangan siput
dalam tangkapan
pertama/ekor
The number of snail in
first capture
Bilangan siput dalam
tangkapan kedua/ekor
The number of snail in
second capture
Bilangan siput yang
bertanda dalam
tangkapan kedua /ekor
The number of marked
snail in second capture
A – Kebun
sains sekolah/
School
science
garden
B – Padang
sekolah/
School field
Jadual /Table 1
a) Rekodkan bilangan siput Achatina fulica yang dikutip dalam tangkapan pertama, kedua
dan tangkapan kedua yang bertanda dalam eksperimen ini dalam Jadual 1.
Record the number of snails Achatina fulica in first captured, second captured and
marked second capture in this experiment in Table 1.
[3 markah/marks]
b) i. Berdasarkan data pada Jadual 1, nyatakan dua pemerhatian yang berlainan dalam
eksperimen ini.
Based on the results in Table 1, state two different observations in this experiment.
Pemerhatian 1 / Observation 1:
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Pemerhatian 2 / Observation 2:
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[3 markah/marks]
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ii. Nyatakan dua inferen daripada Jadual 1.
State two different inferences from Table 1.
Inferen daripada Pemerhatian 1 / Inference from Observation 1:
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Inferen daripada Pemerhatian 2 / Inference from Observation 2:
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[3 markah/marks]
c) Lengkapkan Jadual 2 berdasarkan eksperimen ini.
Complete Table 2 based on this experiment.
Pembolehubah
Variable
Cara mengendalikan pembolehubah
Method to handle the variable
Pembolehubah yang dimanipulasikan
Manipulated variable :
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Pembolehubah yang bergerakbalas
Responding variable:
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Pembolehubah yang dimalarkan
Constant variable:
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Jadual/Table 2
[3 markah/marks]
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d) Nyatakan hipotesis untuk eksperimen ini.
State the hypothesis for this experiment.
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[3 markah/marks]
e) Bina satu jadual dan rekod semua data yang dikumpul dalam eksperimen ini.
Construct a table and record all the data collected in this experiment.
Jadual anda hendaklah mengandungi tajuk-tajuk yang berikut:
Your table should have the following titles:
Kawasan/Area
Bilangan siput Achatina fulica dalam tangkapan pertama
Number of snails Achatina fulica in first captured
Bilangan siput Achatina fulica dalam tangkapan kedua
Number of snails Achatina fulica in second captured
Bilangan siput Achatina fulica yang bertanda dalam tangkapan kedua
Number of marked snails Achatina fulica in second captured
Anggaran populasi siput Achatina fulica Estimation of population of snail Achatina fulica
[3 markah/marks]
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f) i. Lukiskan carta bar untuk menunjukkan hubungan antara anggaran populasi siput
Achatina fulica dengan kawasan kajian dalam kertas graf pada muka surat 8 .
Draw a bar chart to show the relationship between the estimation of population of snail
Achatina fulica and the studied area in the graph paper on page 8.
[3 markah/3 marks]
ii. Berdasarkan graf yang dilukis, terangkan hubungan antara anggaran populasi n siput
Achatina fulica dengan kawasan kajian.
Based on the graph drawn, explain the relationship between the estimation of
population of snails Achatina fulica and the studied area.
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[3 markah/3 marks]
g) Eksperimen ini diulangi pada kawasan A tetapi masa kutipan sampel telah ditukar pada
jam 12 tengahari.
Ramalkan bilangan siput Achatina fulica yang dapat ditangkap pada hari ke 14.
Terangkan ramalan anda.
This experiment is repeated at area A but the time for collecting sample is switch to 12
p.m.
Predict the estimated population number of snails Achatina fulica in two weeks’ time.
Explain your prediction.
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[3 markah/3 marks]
h) Berdasarkan eksperimen ini, takrifkan anggaran populasi secara operasi.
Based on this experiment, define estimation of population operationally.
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[3 markah/3 marks]
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i) Senarai berikut adalah merupakan komponen-komponen yang dijumpai dalam
ekosistem yang dikaji dalam eksperimen ini.
The following list is the components found in the studied ecosystem in this experiment.
Kelaskan komponen-komponen ini kepada faktor biotik atau faktor abiotik yang betul.
Classify these components into biotic factor or abiotic factor.
Faktor biotik/Biotic factor Faktor abiotik/Abiotic factor
[3 markah/3 marks]
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Doh / dough Roti / bread
2. Industri pembuatan roti sememangnya bukan satu perkara baru dalam industri makanan di
negara kita. Pelbagai jenis roti dapat dihasilkan dengan menggunakan kaedah pembuatan roti
yang betul. Kehadiran yis yang berespirasi secara anaerobik dan membebaskan karbon dioksida
menyebabkan doh mengembang.
Bread making industry is not new in the food industry in our country. Various types of bread can
be produced by using the correct method of bread making. The presence of yeast in anaerobic
respiration, release carbon dioxide allows the dough to expand.
Berdasarkan maklumat di atas, rancang satu eksperimen dalam makmal untuk mengkaji kesan
kehadiran yis dalam pembuatan roti.
Based on the above information, plan a laboratory experiment to study the effect of the presence
of yeast in bread making.
Perancangan eksperimen anda hendaklah meliputi aspek-aspek berikut:
The planning of your experiment must include the following aspects:
Pernyataan masalah
Problem statement
Hipotesis
Hypothesis
Pembolehubah
Variables
Senarai radas dan bahan
List of apparatus and materials
Kaedah atau prosedur eksperimen
Experimental procedure or method
Cara data dipersembahkan
Presentation of data
[17 markah/ marks]
KERTAS SOALAN TAMAT
END OF QUESTION PAPER