Question

provide at least one function of the cell membrane. in other words, what does the cell membrane do for the cell? (0:18) a. allows molecules in and out b. does not prevent molecules going in or out c. does not regulate water balance of cell d. does not recognize chemical signals

Explanation:

The cell - membrane is a selectively permeable barrier. It controls the movement of substances (molecules) in and out of the cell. Options B, C, and D are incorrect as the cell - membrane does prevent some molecules from entering or leaving, regulates water balance through osmosis, and can recognize chemical signals (e.g., through receptor proteins).

Answer:

A. Allows molecules in and out