How does cytokenesis occur in most animal cells?

Answer 1

This is straight from my Biology textbook:

"Cytokinesis differs in animal and plant cells. In animal cells, the membrane forms a furrow, or trench, that is pulled inward by tiny filaments, like a drawstring. Gradually the membrane pinches closed, forming a separate cell around each nucleus.

During cytokinesis in plant cells, the membrane cannot pinchinward because of the cell wall. Instead, a cell plate forms between the two nuclei made by the Gogli apparatus, which supplies the new plasma membrane. A new wall then grows as cellulose and other materials are laid down."

Answer 2

Do you mean cytokinesis? Cytokinesis is the division of cytoplasm after the karyokinesis during cell division. Animal cytokinesis takes place by cell furrow formation while in plant cell by cell plate formation. Cell furrows grows centripetally and cell plate centrifugally to divide the cell into two daughter cells. Hence, the cytokinesis are different in them.

Answer 3

In animal cell you have a cleavage furrow that is constructed by microtubles which pinch the sister cells in half by a mechanism analogous to the drawstrings of a small bag being pulled shut. In plant cells vesicles filled with plant cell wall material line up on the cleavage line, merge together and extend to the boundaries of the cell where they form the new wall dividing the sister cells.

Answer 4

Cytokinesis is the last step in mitosis. In this step the cytoplasm splits along the cleavage furrow and becomes two separate cells.

Answer 5

the cell membrane is drawn inward until the cytoplasm is pinched in two nearly equal parts

Answer 6

Cytokinesis happens by cleavage furrow.Contraction of ring of actin filaments makes the furrow.