It is a separate part. Cytokinesis refers to the division of the cytoplasm, after telophase of mitosis. In plants, due to the cell wall, a structure forms in the center of the cell (now having 2 nuclei) called a cell plate.This structure grows out towards the cell walls, ultimately dividing the cell in half, and becoming a new cell wall.In animal cells, since there is no cell wall, the cell membrane pinches, somewhere in the middle of the cell, producing a structure called a cleavage furrow.ytokinesis refers to the division of the cytoplasm, after telophase of mitosis. In plants, due to the cell wall, a structure forms in the center of the cell (now having 2 nuclei) called a cell plate.