surrounding and protecting the contents of the cell. releasing waste products from the cell. producing energy for cell processes. allowing gases to enter the cell.
I gave my students this multiple choice question: All of the following are functions of a cell membrane except

Only one answer is correct among these 4 choices:
- surrounding and protecting the contents of the cell.
- releasing waste products from the cell.
- producing energy for cell processes.
- allowing gases to enter the cell.

Could you tell me which one is correct?

producing energy for cell processes.