Flexi Says: Functions of the eukaryotic cytoskeleton include maintaining cell shape, holding organelles in place, and for some cells, enabling cell movement. The cytoskeleton also plays important roles in both the intracellular movement of substances and in cell division. Roles of the cytoplasm include suspending cell organelles, pushing against the plasma membrane to help the cell keep its shape, and providing a site for many of the biochemical reactions of the cell.