Complex sentence: Other organisms pump solutes out of their cytosol, which brings the solute concentration closer to that of their environment and slows down the process of water's diffusion into the cell, preventing cytolysis.
Split into simpler sentences: Other organisms pump solutes out of their cytosol, which brings the solute concentration closer to that of their environment. This slows down the process of water's diffusion into the cell, preventing cytolysis.