Final answer:
FtsZ proteins are responsible for directing the formation of a septum during cell division, leading to the creation of new cell walls for daughter cells.
Step-by-step explanation:
FtsZ proteins direct the formation of a septum that will eventually form the new cell walls of the daughter cells. During cell division, specifically in the process of cytokinesis, FtsZ proteins assemble into a structure known as the Z ring. This ring is anchored to the plasma membrane and plays a crucial role by constricting and dividing the cell into two daughter cells. The divisome is a complex of proteins added to the Z ring, which facilitates the construction of a new peptidoglycan cell wall that forms the division septum. This septum divides the two daughter cells, each receiving a complete copy of the parental genome. While this process is typical to bacterial and some plant cells, it is different from the way plant cells form a cell wall via the formation of a cell plate.