Here's a breakdown:
* Cell division: When a plant cell divides, it undergoes a process called cytokinesis, where the cytoplasm divides and a new cell wall is formed between the two daughter cells.
* Phragmoplast: This is a structure that forms during cytokinesis in plant cells. It's made of microtubules and is positioned between the two newly forming daughter nuclei.
* Cell plate formation: The phragmoplast acts as a framework for the formation of the new cell wall, called the cell plate. Vesicles containing cell wall material (like cellulose) move along the microtubules of the phragmoplast and fuse together to form the cell plate.
* Cell wall completion: The cell plate expands outward until it eventually connects with the existing cell walls of the parent cell, effectively separating the two daughter cells.
So, while the cell plate is what is actually built, the phragmoplast is the key structure that directs and organizes its formation.
