Question

what is the function of the cell membrane? the cell membrane allows anything into the cell. the cell membrane protects the cell from molecules outside the cell.

Explanation:

The cell membrane is a selectively permeable barrier. It does not allow "anything" into the cell (as stated in the first option). Instead, it controls the movement of substances in and out of the cell. The second option is more accurate as the cell membrane protects the cell by regulating what enters and exits, acting as a barrier against unwanted molecules from the extracellular space.

Answer:

The cell membrane protects the cell from molecules outside the cell.