What is the function of the cells nucleus?
The function of a cell nucleus is to maintain the integrity of genes and control activities of the cell. The nucleus is the control center of the cell.
The nucleus of the inside cheek cells serves the same purpose as the nucleus of every cell, storing the DNA that helps the rest of the cell perform its function. The function of the cheek cell itself, is to help reproduce the epithelial cells, which are cells that protect different cavities of the body.
Prokaryotic cells (bacteria) are not technically not part of animals, but they are found on and in animals. Animals are Eukaryotes. Meaning that they have cells with a nucleus (unlike bacteria which do not have a nucleus to hold in its DNA); and these cells do not have 'walls' like plants or fungi. Cells in animals differ on what their function is, shape always follows function.