Biology Project >
Cell Biology > Cell Membranes > Problem
10: Membrane stability
The major driving force for the formation of a lipid bilayer is _____;
once formed the membrane is further stabilized by ________.
||electrostatic attractions between phospholipid head
groups; hydrophobic forces and hydrogen bonds
hydrophobic forces on the phospholipid
fatty acid carbon chains; hydrogen bonds, electrostatic attractions,
van der Waals contacts.
Yes, hydrophobic forces resulting from
the effects on water force the lipids into a bilayer. Once
the bilayer forms, hydrogen bonds, electrostatic attractions
and van der Waals contacts further stabilize the membrane.
||repulsion between negative charges of phospholipid
fatty acids; hydrogen bonds and van der Waals contacts
||van der Waals contacts between phosphopipid charged
groups; hydrophobic forces, hydrogen bonding and electrostatic
||electrostatic attractions, hydrogen bonds, van der
Waals contacts; covalent bonds
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