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Lamellar models, Biology
James Danielly & Hugh Davson
(1935) cell membrane consists of 4 layers P-L-L-P.
Molecules of phospholipid has amphipathic nature, i.e. it has polar & non-polar ends.
Polar end is head consists of glycerol, which is attached to protein layer by Hydrogen & Ionic bonds (strongest bond) or Electrostatic forces.
Non-polar end is tails consists of fatty acids, which are attached to each other by Vander wall forces (weakest bond) or Hydrophobic or Lipophilic interactions.
Outer & inner surfaces of membrane consists of globular hydrated a-protein.
Posted Date: 10/5/2012 6:22:40 AM | Location : United States
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