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... ’ Membranes act as barriers. ... The biological membrane controls the movement of substances into and out of a cell. ... Membranes also separate the different organelles from each other.
Components of Membranes:
The cell membrane must contain lipids, to allow fat-soluble materials to move across the membrane by being dissolved in it. ...
Even with an electron microscope you cant actually see the detailed structure of a plasma membrane because its too thin. As a result, models have been proposed to account for this structure. ...
Carbohydrates forms another important constituent of membranes. ...
All membranes have this basic structure but they differ greatly in the types of lipids, proteins, and carbohydrates they contain, in keeping with their function.
Integrity of Biological Membranes:
There are large numbers of weak interactions resulting from the properties of lipids and water. ... In addition, there are very few strong covalent chemical bonds holding membranes together.
Approximate Word count = 687
Approximate Pages = 2.7
(250 words per page double spaced)
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