Question

Since transport of materials in and out of the cell can only happen at the cell's surface, what happens as cells get larger? How does this impose a limit on cell size?

Answer 1

The surface area/volume ratio will decrease

Step-by-step explanation:

How does this impose a limit on cell size?

Because the ability of a cell to exchange substances with its environment is proportional to its surface area.

Hence, if surface area/volume decrease and get too small, surface area is not sufficient to take up substances needed to support metabolism or get rid of wastes.