Join TSR now and get all your revision questions answeredSign up now

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

    • Thread Starter
    Offline

    2
    ReputationRep:
    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!
    Offline

    2
    ReputationRep:
    (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.
    • Thread Starter
    Offline

    2
    ReputationRep:
    (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??
    Offline

    2
    ReputationRep:
    (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.
    Online

    3
    ReputationRep:
    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'.
 
 
 
Poll
Which party will you be voting for in the General Election 2017?

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.