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Membranes and transport

Lær
Fluid mosaic model of cell membranesStructure of the plasma membrane
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Diffusion - IntroductionConcentration gradientsOsmosisHypotonic, isotonic, and hypertonic solutions (tonicity)Osmosis and tonicityDiffusion and osmosis
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Passive transport and selective permeabilityFacilitated diffusionDiffusion and passive transport
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Natrium-kalium-pumpenElectrochemical gradients and secondary active transportUniporters, symporters and antiportersActive transport
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Endocytosis, phagocytosis, and pinocytosisExocytosisBulk transport
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Om dette emne

How do the cells in your body define their boundaries (and control what comes in or goes out)? As it turns out, cells have a sophisticated and flexible barrier, the plasma membrane, and a wide array of strategies for transporting molecules in and out. Learn more about what the membrane's made of and how different types of molecules move across it.
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