The cell membrane that surrounds the cell acts as a _____.
A) one-way barrier, allowing materials to enter the cell but not leave it
B) selective barrier, allowing only some materials to pass through it
C) wall-like barrier, preventing all materials from passing through it

Cell membrane can be defined as the outermost covering of the cell which allows the movement of particles across membrane. The particles are allowed to move from inside of the cell to the outside of the cell and from outside to inside of the cell.

This kind of a membrane is known as selectively permeable which allows the movement of certain molecules only.

hence, the correct answer is option B

The cell membrane that surrounds the cell acts as a _____. A) one-way barrier, allowing materials to enter the cell but not leave it B) selective barrier, allowing only some materials to pass through it C) wall-like barrier, preventing all materials from passing through it

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The cell membrane that surrounds the cell acts as a _____.
A) one-way barrier, allowing materials to enter the cell but not leave it
B) selective barrier, allowing only some materials to pass through it
C) wall-like barrier, preventing all materials from passing through it