Answer:
- It only allows certain materials to leave the cell.
- It only allows certain materials to enter the cell.
- It helps the cell get rid of waste.
Explanation:
The cell membrane is a flexible membrane made up of proteins and lipids. It is selectively permeable (allowing only certain materials to enter or leave the cell) and plays a great role in selective absorption of materials (such as food nutrients, antibodies, waste products) entering or leaving the cell.
Also, it helps to protect the cell.
