passive transport membrane simple and facilitated diffusion |
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| navigate by keyword : action anatomy bilayer biochemistry biological biology cambium carrier cell channel cross cytoplasm detailed diagram different diffusion editor education educational element gated illustration ion learning light lipid membrane microscopic morphology natural nature osmosis passive peptide protein pump schematic school science scientific section simple study style transmembrane vector water |
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| Channel and carrier proteins in cell membrane. transport according to gradient. Vector illustration. |
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