AP BIOLOGY

Detailed explanation-1: -Phragmoplasts help in the cell plate formation. Microtubules of the phragmoplasts spreads in the cytoplasm as the cell plate expands. They start from the centre and go outwards towards the cell membrane. And thus finally expands towards the parental cell wall and completes the cell division.

Detailed explanation-2: -Cell plate is precursor of cell wall in plants during cytokinesis.

Detailed explanation-3: -The formation of a new cell wall begins with the formation of a simple precursor, called cell plate that represents the middle lamella between the walls of two adjacent daughter cells.

Detailed explanation-4: -Solution: Precursor of cell plate is phragmoplast the cell plate separates dividing plant cells in the course of mitosis.

Detailed explanation-5: -The process of building a new cell wall to separate the dividing plant cell is called plant cytokinesis.