zahzahnnn45111 zahzahnnn45111
  • 12-11-2018
  • Chemistry
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The------------- can be compared to a gate because it protects the cell and keeps substances from entering and leaving the cell

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cedward
cedward cedward
  • 13-11-2018

the answer is the cell membrane, because it is semi-permeable, this means that only some things are allowed to pass through.

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