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    I found a question that said: which component of the diagram contains carbon and hydrogen only

    diagram labelled: hydrophobic tail; protein channel

    I thought that the hydrophobic tail contained oxygen too

    can someone show me the chemical structure
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    For a start a protein channel is mahoosivley complex and a protein itself (? I may be wrong)

    And heres the structure of a hydrophobic tail -http://liquidbio.pbworks.com/f/phospholipid.jpg

    Only contains carbon and hydrogen therefore no polar bonds therefore cannot interact with water and therefore is hydrophobic
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    Yes fatty acids contain no oxygen besides the carboxyl group at the very end (the residue of which can be seen in the O-C=O part of Jaredss picture)

    It is O-H hydrogen bonding that makes a molecule able to interact with water which is why the fatty acid is hydrophobic.

    The protein channel will invariably contain oxygen and nitrogen and probably sulphur too.
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    That is why I am confused - it does contain oxygen
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    (Original post by jsmith6131)
    That is why I am confused - it does contain oxygen
    Not really- thats only the link between the tail and hydrophillic part. That hydrcarbon chain is significantly longer than the single oxygen atom
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    (Original post by Jaredss)
    For a start a protein channel is mahoosivley complex and a protein itself (? I may be wrong)
    lol - of course it is.

    (Original post by jsmith6131)
    That is why I am confused - it does contain oxygen
    It doesn't count as the 'tail' - its just the link.
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    it is called a hydrocarbon tail, hence it contains hydrogen and carbon
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    the whole phospholipid contains oxygen, yes, but the actual tail doesn't because its the bond that links the two parts that has the oxygen, rather than the actual fatty acid tails, which i hydrophobic, so cannot interact with water
 
 
 
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