Cell Structure Flashcards ionicons-v5-c cell membraneflexible barrier around the cell cytoplasmgel-like fluid inside the cell mitochondriapowerhouse of the cell ribosomessynthesize proteins endoplasmic reticulumtransports proteins around the cell golgi bodysorts and packages proteins lysosomesdigestive system of the cell centriolesproduce spindle fibers needed for mitosis nuclear membrane thin wall around the nucleus nucleuscontrol center of the cell nucleolussynthesizes ribosomes in the nucleus