AP BIOLOGY

Detailed explanation-1: -Because of this, animal cells can bend their cell membrane inward and perform cytokinesis “from the outside in” by forming a cleavage furrow. A cleavage furrow is an indentation on the cell surface that continuously deepens until the animal cell is “pinched” into two separate halves.

Detailed explanation-2: -The first visible change of cytokinesis in an animal cell is the sudden appearance of a pucker, or cleavage furrow, on the cell surface. The furrow rapidly deepens and spreads around the cell until it completely divides the cell in two.

Detailed explanation-3: -Cytokinesis is the physical process that finally splits the parent cell into two identical daughter cells. During cytokinesis, the cell membrane pinches in at the cell equator, forming a cleft called the cleavage furrow.

Detailed explanation-4: -During cytokinesis, the cytoplasm splits in two and the cell divides. The process is different in plant and animal cells, as you can see in Figure 7.3. 8. In animal cells, the plasma membrane of the parent cell pinches inward along the cell’s equator until two daughter cells form.

Detailed explanation-5: -During cytokinesis in an animal cell the cell membrane is pinched in half by a belt of protein threads. During cytokinesis in plant cells a cell plate forms down the middle of the dividing cell.