Assuming concentration is required, the following results were found.
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Investigating the effect of concentration of blackcurrant squash on osmosis in chipped potatoes
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Making a calibration curve for starch concentration
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Investigating effect of concentration on the activity of trypsin
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Investigating an enzyme-controlled reaction: catalase and hydrogen peroxide concentration
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Investigating effect of temperature on the activity of lipase
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Observing the growth of pollen tubes
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Investigating factors affecting the heart rate of Daphnia
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Quantitative food test: protein content of powdered milk
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Investigating what makes fruit go brown
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Investigating factors affecting the breathing rate of a locust
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Investigating the effect of pH on amylase activity
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Gene induction: ß-galactosidase in E. coli
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How do plants and animals change the environment around them?
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Brine date
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Working with immobilised enzymes or microscopic organisms
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Investigating osmosis in chickens’ eggs
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Observing osmosis, plasmolysis and turgor in plant cells
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Investigating photosynthesis using immobilised algae
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Measuring the Vitamin C content of foods and fruit juices
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A window on the past: Measuring stomatal density