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A thin, flexible, semipermeable barrier around the cell which regulates what enters and leaves the cell.

Example: Gatekeeper for the cell.

2 Answers

4 votes
Phospholipid bilayer is the barrier that is semipermeable
User Chris Mayer
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3 votes
Not sure this is a question but my answer would be a semi-permeable membrane? Hope this helps! <3
User Roshan Parmar
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