- The cell nucleus controls many of the functions of the cell
- A cell nucleus is a part of a cell
- So, the cell nucleus is part of the cell that controls many of the functions of the cell

So, the cell nucleus is part of the cell that controls many of the functions of the cell
Which part of a plant cell is responsible for controlling the activities of the other parts of the cell?
- The cell nucleus controls many of the functions of the cell 
- A cell nucleus is a part of a cell