Which molecule separates the contents inside of the cell from the contents outside of the cell

Which molecule separates the contents inside of the cell from the contents outside of the cell

Explanation:

cell membrane

Every cell in the body is enclosed by a cell (Plasma) membrane. The cell membrane separates the material outside the cell, extracellular, from the material inside the cell, intracellular. It maintains the integrity of a cell and controls passage of materials into and out of the cell.

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