Question

Which event most accurately describes cytokinesis?

Answer 1

Cytokinesis is the process wherein actual division of the cell, including the cell membrane and the cytoplasm, from the parent cell to two daughter cells. The correct answer in this question is "the metaphase plate is the beginning area for cytokinesis" as the metaphase plate dictates the midpoint of the cell. A cell with a cell wall (plant cell, for example) cannot perform cytokinesis with a cleavage furrow but with a cell plate. Phragmoplast only develops in plant cells. Lastly, cytokinesis only starts after telophase.

Answer 2

Answer:

The correct answer would a. cell walls prevent cleavage furrow from deepening.

Cytokinesis refers to the division of cytoplasm of a parent cell into two daughter cells.

In animal cells, the cytokinesis is achieved with the help of cleavage furrow. The contractile ring of actin filament is formed below the cell membrane that constricts the middle of a dividing cell in order to complete the cell division.

In plant cells, due to the presence of a cell wall, cytokinesis takes place with the help of cell plate formation instead of a contractile ring.

Formation of cell plate takes place along the equator of the dividing cell. New cell membrane and cell wall are formed along each side of the plate in order to divide the parent into two daughter cells.