The cellular process diffusion does not require cellular ________________ to reach equilibrium. Similarly, ________________uses a selectively permeable membrane to reach equilibrium. This Membrane allows _____________to pass through, but not soluble particles or molecules. It too does Not require cellular energy. When molecules cannot move through a cell membrane passively, the Cell uses a process called_____________. This process uses_______________ found in the cells Membrane to pass particles and reach equilibrium.