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Why do membranes need specialised channels for the diffusion of charged ions? watch

    • Thread Starter

    I know the answer is because the inside of the phospholipid bilayer is hydrophobic.
    So can you describe the ions as being hydrophillic? If so, is that because they're able to form bonds with water molecules e.g. na+ + oh- -> naoh

    Hydrophillic means that the substance is polar, ions are polar molecules as they all have a positive and negative charge, which does mean that they can form bonds with water. Hydrophobic substances are non-polar.
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