So cell proliferation increases the number of cells but cell growth actually increases the size of that cell. So any given cell could, for example, build more organelles. It could build a larger membrane. It could also develop more cytoplasm and as a result it will grow in size. And so we have a smaller cell but eventually it becomes a larger cell. So we have an increase in the number of cells and an increase in the size of that cell because we know in our body we have different sizes and different types of cells.