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Which cellular structure must substances pass through to enter or leave the cell?

a red blood cells
b nucleus
C cell membrane

2 Answers

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Answer:

C. The cell membrane

The cell membrane functions as a semi-permeable barrier, allowing a very few molecules across it while fencing the majority of organically produced chemicals inside the cell.

Step-by-step explanation:

Hope it helps! =D

User Eugene Kliuchnikov
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Cell membrane, due to the cell membrane controlling what goes in and out of the cell.
User Jason Prado
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