3. what two main functions do proteins perform on the cell membrane?

3. what two main functions do proteins perform on the cell membrane?
Answer
Brief Explanations:
Cell - membrane proteins have multiple functions. Two main ones are transport and cell - cell recognition. Transport proteins help move substances across the membrane, while proteins involved in cell - cell recognition allow cells to identify each other, which is important for processes like immune response and tissue formation.
Answer:
Transport of substances; Cell - cell recognition