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CAPE Biology Unit 2 · 2018 · Paper 2 · Question 5(b)

The potential difference across the membrane of a resting neurone is approximately −70 mV. Explain the role of the membrane in maintaining this resting potential.

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  1. 5(a)An athlete loses a considerable amount of water by sweating during training, after which he has a high intake of fluids. Explain the mechanism by which water…[8 marks]

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