Experiments​​
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22 Mandatory Biology Investigations
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Conduct a qualitative test for: starch, fat, a reducing sugar, a protein.
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Identify any 5 fauna and any 5 flora using simple keys. Identify a variety of habitats within the selected ecosystem.
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Identify and use various apparatus required for collection methods in an ecological study.
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Conduct a quantitative study of plants and animals of a sample area of the selected ecosystem. Transfer results to tables, diagrams, graphs, histograms or any relevant mode.
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Investigate any 3 abiotic factors present in the selected ecosystem. Relate the results to the choice of habitat selected by each organism identified in this study.
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Be familiar with and use the light microscope.
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Investigate the effect of temperature on the rate of one of the following: amylase, pepsin or catalase activity.
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Investigate the effect of heat denaturation on the activity of one enzyme.
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Prepare one enzyme immobilisation and examine its application.
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Investigate the influence of light intensity or carbon dioxide on the rate of photosynthesis.
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Prepare and show the production of alcohol by yeast.
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Conduct any activity to demonstrate osmosis.
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Isolate DNA from plant tissue.
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Investigate the growth of leaf yeast using agar plates and controls.
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Prepare and examine microscopically the transverse section of a dicotyledonous stem (X100, X400)
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Investigate the effect of exercise on the breathing rate or pulse rate of a human.
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Investigate the effect of IAA growth regulator on plant tissue.
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Investigate the effect of water, oxygen and temperature on germination.
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Use starch agar or skimmed milk plates to show digestive activity during germination.
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