Exam (elaborations)
A-level BIOLOGY 7402/1 Paper 1 Mark scheme June 2020 Version: 1.0 Final
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1. (Maintains/generates) a concentration/diffusion gradient for Na+ (from ileum into cell); 2. Na+ moving (in) by facilitated diffusion, brings glucose with it OR Na+ moving (in) by co-transport, brings glucose with it; 2 1. Accept ‘(Maintains/generates) a lower concentration...
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