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amphipathic molecule

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amphipathic molecule

Postby cellbiostudent » Wed Jan 21, 2009 9:57 pm

What I know about amphipathic molecules are that they have both hydrophobic regions and hydrophilic regions. But why is it that in a aqueous solution the bilayer it is hydrophilic and monolayer is hrdrophobic?
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Postby mith » Wed Jan 21, 2009 10:57 pm

I'd assume you'd have to look at the structures formed in water.
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Postby cellbiostudent » Wed Jan 21, 2009 11:13 pm

the example that I am looking at the mono layer forms a sphere and the bilayer forms a vesicle that contains water.
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Postby MrMistery » Thu Jan 22, 2009 2:31 am

because in a bilayer you have all the hydrophilic heads at the exterior and the hydrophobic tails together on the inside. In a monolayer, you have the hydrophilic heads on one side and the hydrophobic tails on the other, so one of the sides has to be hydrophobic.
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