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AS Biology Unit 3 practical experiments
covers the steps in each experiment required for AS Pearson Edexcel Unit 3 exam as well as the commonly asked question in units 1-3 regarding those experiments.
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Summary Investigating antimicrobial properties of plants
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Pearson Edexcel Advanced Level Biology Unit 3 experiments notes. Describe how to investigate the antimicrobial properties of plants.
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Summary Investigating effect of caffeine of Daphnia heart rate.
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Pearson Edexcel Advanced Level Biology Unit 3 experiments notes. Describe how the effect of caffeine on heart rate in Daphnia can be investigated practically, and discuss whether there are ethical issues in the use of invertebrates.
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Summary Investigating effect of enzyme concentration on rate of reaction
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Pearson Edexcel Advanced Level Biology Unit 3 experiments notes. Describe how enzymes concentrations can affect the rates of reactions and how this can be investigated practically by measuring the initial rate
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Summary investigating Vitamin C content
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Pearson Edexcel Advanced Level Biology unit 3 notes. Describe how to investigate the vitamin C content of food and drink.
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Summary Investigating totipotency practically.
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Pearson Edexcel Advanced Level biology Unit 3 notes. Describe how totipotency can be demonstrated practically using plant tissue culture techniques.
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Summary Investigating tensile strength of plant fibers
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Pearson Edexcel Advanced Level Biology Unit 3 notes. Describe how to determine the tensile strength of plant fibres practically.
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Summary Investigation plant mineral deficiencies.
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Pearson Edexcel Advanced Level Biology Unit 3 notes. Describe how to investigate plant mineral deficiencies practically.
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Summary Observing mitosis under microscope.
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Pearson Edexcel Advanced Level Biology Unit 3 notes. Describe the stages of mitosis and how to prepare and stain a root tip squash in order to observe them practically.
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Summary Investigating membrane permeability.
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Pearson Edexcel Advanced Level Biology Unit 3 notes. Describe how membrane structure can be investigated practically, e.g. by the effect of alcohol concentration or temperature on membrane permeability.
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