Why cells have limits as to how big or small they can be?

because like most things, cells have a limit as to how big or small they can be. they cannot be too small, or they will not have room for all their parts. they cannot be to big, or oxygen and other materials will not be able to reach the middle of the cell fast enough to keep the cell alive. also, waste must be able to leave.

NOTE: ( i got this info from my science book )