Stephanyx14 Stephanyx14
  • 28-04-2017
  • Biology
contestada

one reason why a molecule may not be able to pass into or of the cell

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summerb27 summerb27
  • 28-04-2017

All cells have selectively permeable membranes, which means that only they let certain important molecules inside the cell, while the others stay outside the cell.

This occurs by the process of diffusion or osmosis.  

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