It is the cell nucleus.
The nucleus coordinates the cell's activities which include growth, intermediary metabolism, protein synthesis, and reproduction (cell division).
It regulates activities of the following organelles in the cell.
(1) Endoplasmic reticulum which synthesizes carbohydrates and lipids.
(2) Golgi apparatus which manufactures , stores and ships certain cellular products.
(3) Lysosomes which digest cellular macromolecules
(4) Mitochondria which provide energy for the cell.
(5) Peroxisomes which detoxify alcohol, form bile acid and use oxygen to break down fats.
