Required practical 1: rate of an enzyme-controlled reaction

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Required practical 2: root tip squashes and mitotic index

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Required practical 3: water potential of plant tissue

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Required practical 4: permeability of cell membranes

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Required practical 5: dissection of an organ system

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Required practical 6: aseptic technique and antimicrobials

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Required practical 7: chromatography of leaf pigments

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Required practical 8: dehydrogenase activity in chloroplasts

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Required practical 9: respiration in single-celled organisms

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Required practical 10: choice chambers and mazes

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Required practical 11: glucose calibration curve

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Required practical 12: distribution of a species

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Planning investigations: variables, controls and validity

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Measurement, uncertainty and percentage error

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Calculations in biology

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Graphs: choosing, plotting and reading them

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Mean, standard deviation and error bars

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Choosing and using statistical tests

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Data analysis: biological molecules and cells

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Data analysis: exchange and transport

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Data analysis: genetics, variation and evolution

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Data analysis: energy transfer and ecosystems

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Data analysis: nerves, muscles and homeostasis

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Data analysis: gene expression and gene technology

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Essays on molecules and cells

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Essays on organisms, populations and the environment

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