The center of a cell is a nucleus?

Answer 1

Although the nucleus may not be present at the center of the cell in many cases, it is true for most mammalian and microbial species.

In a plant cell however, there is a large vacuole in the center of the cell, causing the nucleus to be present off to one side.

Answer 2

The function of the nucleus is to control the activities of the cell and contain the genetic material, DNA. It is surrounded by a nuclear membrane that separates it from the rest of the cell.