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Homework Help: Phospholipids in cell membrane

  1. Dec 23, 2011 #1
    1. The problem statement, all variables and given/known data
    Are phospholipids cholesterol?Because in one book it says that ' cholesterol molecules, like phospholipids'. I am a little bit confused.

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Dec 23, 2011 #2


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    Staff: Mentor

    Cholesterol is cholesterol, phospholipids are phospholipids. They have some similar properties, which is probably what the book aims at.
  4. Dec 23, 2011 #3
    Thanks,and are there any lipids apart from phospholipids?
    And why does the cholesterol fit between the phospholipids molecules? Is it because they have similar properties?
  5. Dec 23, 2011 #4
    Do you mean why does bind within the bilayer, or why is it necessary for it to be there? You have to be a tad more specific.

    There are many types of lipid present in the cell membrane, most of these are glycolipids: sugars attached to a lipid molecule (often the phospho-lipid bilayer but not exclusively).
  6. Dec 26, 2011 #5
    I want to know why does bind within the player.
  7. Dec 26, 2011 #6
    What are the properties of phospholipds that mean they form a bilayer? Does cholesterol have these properties? I think if you answer these questions you'll have your answer. However, cholesterol also has some special properties of its own.
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