1. Cytokinesis:
* Animal cells: Cytokinesis occurs through a process called cleavage furrow formation. The cell membrane pinches inward, forming a furrow that eventually separates the two daughter cells.
* Plant cells: Plant cells have a rigid cell wall that prevents this type of cleavage. Instead, they form a cell plate in the middle of the dividing cell. This cell plate grows outward from the center, eventually fusing with the existing cell wall to create two separate cells.
2. Formation of the contractile ring:
* Animal cells: During cytokinesis in animal cells, a contractile ring composed of actin filaments and myosin proteins forms at the equator of the dividing cell. This ring contracts, pulling the cell membrane inward and creating the cleavage furrow.
* Plant cells: Plant cells do not form a contractile ring. Instead, the cell plate formation is driven by the deposition of cell wall materials from vesicles that originate from the Golgi apparatus.
Let me know if you'd like more details on either of these processes!
