supporting the shape of the cell manufacturing proteins for the cell limiting chemicals that diffuse out of the cell storing waste products for the cell
I gave my students this multiple choice question: Which example is a function of the selectively permeable membrane of a cell?

Only one answer is correct among these 4 choices:
- supporting the shape of the cell
- manufacturing proteins for the cell
- limiting chemicals that diffuse out of the cell
- storing waste products for the cell

Could you tell me which one is correct?

limiting chemicals that diffuse out of the cell