2.15a Surface area and diffusion

1. In our cell the volume is measured in 1 unit and the surface area is measured in 2 units.
2. Ratio Surface area : volume= 1:2
3. If we increase the surface area, we keep the volume the same. In order to the do this we have to fold the surface.
4. The increasing of surface area allows more molecules to diffuse into the cell.
5. By increasing the surface area we increase the movement of substances into the cell or out of the cell.