The Cell Membrane

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Issue:

Science

 

Written by:

Steve B

 

Date added:

September 13, 2012

 

Level:

University

 

Grade:

A

 

No of pages / words:

3 / 717

 

Was viewed:

1436 times

 

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Essay content:

With their hydrophilic (water attracting) phosphate heads facing outwards and their hydrophobic (water fearing) tails facing in towards the middle of the bilayer. The hydrophobic layer acts as a barrier to all but the smallest molecules and effectively isolating the two sides of the membranes. Some membranes contain phospholipids with different fatty acids, which affect the strength and flexibility...
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These are called integral proteins. But some sit on one side of the bilayer, these are called peripheral proteins. Proteins comprise approximately 50% of the mass of the membrane. The integral proteins (ones which span across the whole bilayer) are usually involved in the transporting of substances across the membrane...
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