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PERFECT SCORE BIOLOGY 2009
BAHAGIAN SEKOLAH BERASRAMA PENUH DAN SEKOLAH KLUSTER KEMENTERIAN PELAJARAN MALAYSIA
PERFECT SCORE BIOLOGY
2009
MODUL IV
PAPER 3 QUESTION 2
Student’s Copy DISEDIAKAN OLEH: 1. 2. 3. 4. 5.
Puan Hasimah binti Azit – Sekolah Seri Puteri, Cyberjaya Puan Natrah binti Mohamad – SMA Persekutuan Kajang Puan Mardiana binti Yusof – SMS Hulu Selangor Puan Sarah Safarina binti Sabri- Kolej Islam Sultan Alam Shah Puan Kamariah binti Zailan – SMA Persekutuan Labu
1
PERFECT SCORE BIOLOGY 2009 Question 1: The cell sap concentration in a plant tissue depends on the water content of its cell sap. In a hypotonic solution, the water content of the cell sap increases causing the cell to become turgid. In a hypertonic solution, the cell sap loses water and becomes flaccid. In an isotonic solution, the plant cell maintains its shape because the concentration of the cell sap is equal to the solution outside the cell. Design a laboratory experiment to determine the isotonic concentration of a potato cell. The planning of the experiment should include the following aspects: • • • • • • • • •
Statement of identified problem Objective of study Variables Statement of hypothesis List of apparatus and materials Technique Procedure Presentation of data Conclusion
Answer: …………………………………………………………………..…………………………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 ………………………………………………………………………………….……………………………………………………
Question 2 Diagram 2 shows an area where different activities are being carried out. The river flowing at the area receives the wastes from the town and also from the factories. In conjunction with their studies of the effects of human activities on the environment, a group of students carried out an experiment to study the level of water pollution in three stations A, B and C, along the river.
Plan an investigation which you could personally carry out in the laboratory to determine the level of pollution in stations A, B and C. The planning of the experiment should include the following aspects: • • • • • • • • •
Statement of identified problem Objective of study Variables Statement of hypothesis List of apparatus and materials Technique Procedure Presentation of data Conclusion
………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… Question 3: Interaction between the two components, the biotic and abiotic in an ecosystem produces a stable ecosystem. Based on the above information, design an experiment to investigate how the temperature does affects the growth of yeast. The planning of your experiment must include the following aspects: ● Problem statement ● Aim of investigation ● Hypothesis ● Variables ● List of apparatus and materials ● Technique ● Procedure ● Presentation of data ● Conclusion …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ……………………………………………………………………………………………………………………………………….
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PERFECT SCORE BIOLOGY 2009 …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… Question 4: The rate of photosynthesis is influenced by different environment factors. Base on the above situation; plan a laboratory experiment to determine the effect of light intensity on the rate of photosynthesis. The planning of your experiment must include the following aspects: • • • • • • • • •
Statement of identified problem Objective of study Variables Statement of hypothesis List of materials and apparatus Technique used Experimental procedure Presentation of data Conclusion
…………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….……………………………………………………
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PERFECT SCORE BIOLOGY 2009 …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… Question 5:
The absorption of digested food substances like glucose and amino acids occurs in the villi in the small intestine. Bigger molecules like the undigested starch and protein molecules cannot be absorbed by the villi. Based on the above statement , plan an experiment which you could carry out in the laboratory to show the movement of an example of digested food through the villi. The planning of your experiment should include the following aspects: • Problem statement • Aim of investigation • Hypothesis • Variables • List of materials and apparatus • Technique used • Experimental procedure • Presentation of data • Conclusion …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ……………………………………………………………………………………………………………………………………….
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PERFECT SCORE BIOLOGY 2009 …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….…………………………………………………
Question 6:
In Malaysia children and teenagers are fast taking up the habit of smoking. Our Prime Minister raised taxes on cigarettes by 40% in his 2005 budget.The government also has launched $26 million anti-smoking campaign. Based on the above statement, it is found that smoking is harmful to person. Plan an experiment which you could carry out in the laboratory to show the effects of smoking on our lungs. ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… Question 7: The population of crow is increasing in Kenari Village due to the existence of dumping site. The villagers complained the birds’ dropping caused corrosion to their vehicle paint. A group of biologists decides to carry out a study to find out the population size of the crow before deciding the appropriate approach to overcome the problem faced by the community. The population size of crow in Kenari Village is compared to the population of crow in Bangau Village which is 10km away. Plan an experiment that can be carried out in the field to study the population of crows. The planning of your experiment must include the following aspects. • • • • • • • • •
Problem statement Aim of investigation Hypothesis Variables List of apparatus and materials Technique Experiment procedure or method Presentation of data Conclusion
………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….……………………………………………………
Question 8: During vigorous exercise such as running, the muscles require more oxygen and glucose to release energy during cellular respiration. Therefore the rate of respiration and heartbeat change. Design an experiment to study the effect of vigorous exercise on the respiration and heartbeat rates. Your plan must include the following aspects: • Problem statement • Aim of the study • Statement of hypothesis • Variables • List Material and Apparatus • Techniques used • Experimental Procedure • How data communicated • Conclusion ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….…………………………………………………
Question 9 Plant needs macronutrients and micronutrients to grow healthy and reproduce. Nitrogen as in nitrate, phosphorus and potassium are most important. By using a suitable plant that can absorb nutrient from nutrient solution (aquaculture), design an experiment to show the effect of nitrogen, phosphorus and potassium deficiency on this plant.
Your experimental planning need to include the following aspects: •
Statement of identified problem
•
Objective of study
•
Variables
•
Statement of hypothesis
•
List of materials and apparatus
•
Technique used
•
Experimental procedures
•
Presentation of data
•
Conclusion
………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 ………………………………………………………………………………….…………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………
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PERFECT SCORE BIOLOGY 2009 Question 10: A group of students did a study on the function of enzymes as an organic catalyst that can regulate and increase the rate biochemical reactions in the cell. Enzymes are very sensitive to a change in temperature and functions efficiently at an optimum temperature. Design an experiment to study the effect of different temperatures on the activity of salivary amylase on starch. The planning of your experiment must include the following aspects:
• • • • • • • • •
Statement of identified problem Objective of study Variables Statement of variables List of materials and apparatus Technique used Experimental procedure Presentation of data Conclusion
……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………….
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BAHAGIAN SEKOLAH BERASRAMA PENUH DAN SEKOLAH KLUSTER KEMENTERIAN PELAJARAN MALAYSIA
PERFECT SCORE BIOLOGY
2009
MODUL IV
PAPER 3 QUESTION 2
Student’s Copy DISEDIAKAN OLEH: 1. 2. 3. 4. 5.
Puan Hasimah binti Azit – Sekolah Seri Puteri, Cyberjaya Puan Natrah binti Mohamad – SMA Persekutuan Kajang Puan Mardiana binti Yusof – SMS Hulu Selangor Puan Sarah Safarina binti Sabri- Kolej Islam Sultan Alam Shah Puan Kamariah binti Zailan – SMA Persekutuan Labu
1
PERFECT SCORE BIOLOGY 2009 Question 1: The cell sap concentration in a plant tissue depends on the water content of its cell sap. In a hypotonic solution, the water content of the cell sap increases causing the cell to become turgid. In a hypertonic solution, the cell sap loses water and becomes flaccid. In an isotonic solution, the plant cell maintains its shape because the concentration of the cell sap is equal to the solution outside the cell. Design a laboratory experiment to determine the isotonic concentration of a potato cell. The planning of the experiment should include the following aspects: • • • • • • • • •
Statement of identified problem Objective of study Variables Statement of hypothesis List of apparatus and materials Technique Procedure Presentation of data Conclusion
Answer: …………………………………………………………………..…………………………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….…………………………………………………
2
PERFECT SCORE BIOLOGY 2009 ………………………………………………………………………………….……………………………………………………
Question 2 Diagram 2 shows an area where different activities are being carried out. The river flowing at the area receives the wastes from the town and also from the factories. In conjunction with their studies of the effects of human activities on the environment, a group of students carried out an experiment to study the level of water pollution in three stations A, B and C, along the river.
Plan an investigation which you could personally carry out in the laboratory to determine the level of pollution in stations A, B and C. The planning of the experiment should include the following aspects: • • • • • • • • •
Statement of identified problem Objective of study Variables Statement of hypothesis List of apparatus and materials Technique Procedure Presentation of data Conclusion
………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… Question 3: Interaction between the two components, the biotic and abiotic in an ecosystem produces a stable ecosystem. Based on the above information, design an experiment to investigate how the temperature does affects the growth of yeast. The planning of your experiment must include the following aspects: ● Problem statement ● Aim of investigation ● Hypothesis ● Variables ● List of apparatus and materials ● Technique ● Procedure ● Presentation of data ● Conclusion …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ……………………………………………………………………………………………………………………………………….
5
PERFECT SCORE BIOLOGY 2009 …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… Question 4: The rate of photosynthesis is influenced by different environment factors. Base on the above situation; plan a laboratory experiment to determine the effect of light intensity on the rate of photosynthesis. The planning of your experiment must include the following aspects: • • • • • • • • •
Statement of identified problem Objective of study Variables Statement of hypothesis List of materials and apparatus Technique used Experimental procedure Presentation of data Conclusion
…………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….……………………………………………………
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PERFECT SCORE BIOLOGY 2009 …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… Question 5:
The absorption of digested food substances like glucose and amino acids occurs in the villi in the small intestine. Bigger molecules like the undigested starch and protein molecules cannot be absorbed by the villi. Based on the above statement , plan an experiment which you could carry out in the laboratory to show the movement of an example of digested food through the villi. The planning of your experiment should include the following aspects: • Problem statement • Aim of investigation • Hypothesis • Variables • List of materials and apparatus • Technique used • Experimental procedure • Presentation of data • Conclusion …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ……………………………………………………………………………………………………………………………………….
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PERFECT SCORE BIOLOGY 2009 …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….…………………………………………………
Question 6:
In Malaysia children and teenagers are fast taking up the habit of smoking. Our Prime Minister raised taxes on cigarettes by 40% in his 2005 budget.The government also has launched $26 million anti-smoking campaign. Based on the above statement, it is found that smoking is harmful to person. Plan an experiment which you could carry out in the laboratory to show the effects of smoking on our lungs. ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… Question 7: The population of crow is increasing in Kenari Village due to the existence of dumping site. The villagers complained the birds’ dropping caused corrosion to their vehicle paint. A group of biologists decides to carry out a study to find out the population size of the crow before deciding the appropriate approach to overcome the problem faced by the community. The population size of crow in Kenari Village is compared to the population of crow in Bangau Village which is 10km away. Plan an experiment that can be carried out in the field to study the population of crows. The planning of your experiment must include the following aspects. • • • • • • • • •
Problem statement Aim of investigation Hypothesis Variables List of apparatus and materials Technique Experiment procedure or method Presentation of data Conclusion
………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….……………………………………………………
Question 8: During vigorous exercise such as running, the muscles require more oxygen and glucose to release energy during cellular respiration. Therefore the rate of respiration and heartbeat change. Design an experiment to study the effect of vigorous exercise on the respiration and heartbeat rates. Your plan must include the following aspects: • Problem statement • Aim of the study • Statement of hypothesis • Variables • List Material and Apparatus • Techniques used • Experimental Procedure • How data communicated • Conclusion ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….…………………………………………………
Question 9 Plant needs macronutrients and micronutrients to grow healthy and reproduce. Nitrogen as in nitrate, phosphorus and potassium are most important. By using a suitable plant that can absorb nutrient from nutrient solution (aquaculture), design an experiment to show the effect of nitrogen, phosphorus and potassium deficiency on this plant.
Your experimental planning need to include the following aspects: •
Statement of identified problem
•
Objective of study
•
Variables
•
Statement of hypothesis
•
List of materials and apparatus
•
Technique used
•
Experimental procedures
•
Presentation of data
•
Conclusion
………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………….…………………………………………………… …………………………………………………………………………………….………………………………………………… …………………………………………………………………………………….………………………………………………… ………………………………………………………………………………………………………………………………………. …………………………………………………………………………………….…………………………………………………
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PERFECT SCORE BIOLOGY 2009 ………………………………………………………………………………….…………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ………………………………………………………………………………………………………………
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PERFECT SCORE BIOLOGY 2009 Question 10: A group of students did a study on the function of enzymes as an organic catalyst that can regulate and increase the rate biochemical reactions in the cell. Enzymes are very sensitive to a change in temperature and functions efficiently at an optimum temperature. Design an experiment to study the effect of different temperatures on the activity of salivary amylase on starch. The planning of your experiment must include the following aspects:
• • • • • • • • •
Statement of identified problem Objective of study Variables Statement of variables List of materials and apparatus Technique used Experimental procedure Presentation of data Conclusion
……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ………………………………………………………………………………………………………………. ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………… ……………………………………………………………………………………………………………….
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