Final answer:
FtsZ proteins direct the formation of a contractile ring that will eventually form the new cell walls of the daughter cells.
Step-by-step explanation:
FtsZ proteins direct the formation of a contractile ring that will eventually form the new cell walls of the daughter cells. The contractile ring is made up of FtsZ protein filaments that assemble at the site of cell division. These filaments constrict and guide the formation of the dividing cell membrane, leading to the formation of the new cell walls.