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The Epic Interactive Encyclopedia 1997
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membrane
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1992-09-03
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335b
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10 lines
The membrane in living things, is a
continuous layer, made up principally of fat
molecules, that encloses a cell or organelles
within a cell. Certain small molecules can
pass through the cell membrane, but most must
enter or leave the cell via channels in the
membrane made up of special proteins.
Subject by: Andrew Longhorn