irvinguzmanx3927 irvinguzmanx3927
  • 08-11-2017
  • Biology
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All cells are surrounded by a membrane. which is a characteristic of a cell membrane

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yaka2519
yaka2519 yaka2519
  • 08-11-2017
Cell membranes serve as barriers and gatekeepers. They are semi-permeable, which means that some molecules can diffuse across the lipid bilayer but others cannot
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