Animal cells have cytoskeleton for their structure. Plant cells have cell walls. The function of the cell wall or cytoskeleton is to keep the cell in its shape and to keep it from squishing.
THere is the cell membrane and the cell wall, and the nucleus in the centre is effectively it's brain. They do many things, people are primarily made from cells
Different cells are different in structure because of their different functions (e.g. plant cells have cell walls because they don't have bones). Also, cells have different functions because they...