IB Biology — Topic 2.3

Membranes and membrane transport

B2.1

Sub-topics in Topic 2.3

2.3.1Membrane structure and the fluid mosaic model2.3.2Simple diffusion and osmosis2.3.3Facilitated diffusion: channel and carrier proteins2.3.4Active transport and the sodium-potassium pump2.3.5Selective permeability, modelling and bulk transport

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