How do animal cells without cell walls divide their cytoplasm during cytokinesis?
In cells with no cell wall, the cell pinches in two. In cells with a cell wall, a cell plate forms and separates the new cells.
Describe how animal cells and eukaryotes without cell walls divide their cytoplasm during cytokinesis?
In animal cells and other eukaryotes that do not have cell walls, division of the cytoplasm begins at the cell membrane. The cell membrane begins to pinch inward to form a groove, which eventually pinches all the way through the cell, and two daughter cells form. The division of cytoplasm is called cytokinesis.
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.
Cytokinesis occurs differently in animal and plant cells. In animal cells, the cell membrane is drawn inward until the cytoplasm is pinched into two equal parts. In plants, a cell plate forms midway between the divided nuclei and gradually separates the two. A cell wall then begins to appear in the cell plate.
A plant cell, during mitosis, has no centriole, so in the second phase [metaphase], spindle fibers do not connect to the [missing] centriole that move in opposite directions in animal cell mitosis. Also, instead of having a cleavage, like in animal cell mitosis, a cell plate forms. In the telophase in plant cells, the cytoplasm does not narrow or compress, a cell plate is instead formed in the center of the cell and this divides…
Both binary fission and mitosis are forms of cell division - they will both produce new cells. Binary fission is used by prokaryotic cells (eg. bacteria) to divide. Mitosis is used by eukaryotic cells (eg. plants and animals) to divide. Cytokinesis is the division of a cells cytoplasm to form two new cells, and occurs during the end of mitosis.
Mitosis is the division of the nucleus of a cell. Cytokinesis is the division of the cytoplasm of a cell to create two separate cells. In order for cells to divide to form daughter cells both processes are needed. Mitosis occurs creating two genetically identical nuclei and cytokinesis completes cell division resulting in the two genetically identical eukaryotic cells. One of the nuclei is in each cell.
Because a plant cells are surrounded by the rigid cell wall, it cannot use microfilaments to go through cytokinesis. Instead, it builds a cell plate in the middle of the cell to represent the division. An animal cell does not have this rigid structure, so it forms a cleavage furrow by pinching the cell in the middle with microfilaments. This will successfully divide the cell into two.