Answer :
Diffusion rate of chemicals limits the size of a cell. Compartments allow a cell to be bigger by restricting the distance chemicals must diffuse to the size of an organelle, and actively transporting materials between compartments.
Answer;
-They keep reactions separated
-They dictate reaction rates
-They can deal with things in order
Explanation;
-Compartments allow a cell to be bigger by restricting the distance chemicals must diffuse to the size of an organelle, and actively transporting materials between compartments. They allow the separation/specialization of processes within the cell.