Lipids Are Confusing Me (Biology help needed)!!!

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    So ive read in one book that phospholipids are polar but ive read else where that they are not. The book i read that they are phospholipids in is the aqa book ( my spec).

    So which one is right?? And can someone explain why??

    Thanks!
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    (Original post by TSR778899)
    So ive read in one book that phospholipids are polar but ive read else where that they are not. The book i read that they are phospholipids in is the aqa book ( my spec).

    So which one is right?? And can someone explain why??

    Thanks!
    Phospholipids are polar moleculesdue to the presence of the hydrophillic phosphate heads.
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    (Original post by SANTR)
    Phospholipids are polar moleculesdue to the presence of the hydrophillic phosphate heads.
    so polar doesn't always mean an imbalance of charge??
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    (Original post by TSR778899)
    so polar doesn't always mean an imbalance of charge??
    Polarity arises when there is a difference in the electronegativites of atoms.
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    As Santr says - polarity arise through a unequal distribution of negative charge caused by bonded atoms having different electronegativities. Phospholipids have an uncharged, aliphatic tail but a large, negatively-charged polar 'head'.
 
 
 
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