Final answer:
The new cell walls of two daughter plant cells are derived from the secretory products within the Golgi-derived vesicles that form the cell plate.
Step-by-step explanation:
In plant cells, the new cell walls of two daughter plant cells are derived from the secretory products within the Golgi-derived vesicles that form the cell plate. These Golgi vesicles accumulate enzymes, structural proteins, and glucose molecules during interphase. During telophase, the Golgi vesicles fuse and coalesce to form a cell plate, which enlarges and merges with the cell walls, resulting in the formation of new cell walls.