Nucleus is a membrane bounded structure that contains the cell's hereditary information and controls the cell's growth and is the commander center of the eukaryotic is the most prominant organelle of the cell.

parts and  functions :

(A)  The Nucleolus:Contained within the nucleus is a dense structure composed of RNA and proteins called the nucleolus.Protein Synthesis:

(B)  Centrioles -  they help to organize the assembly of microtubules.

(C)  Chromosomes - they are the house cellular DNA.

(D)  Cilia and Flagella - they aid in cellular locomotion.

(E)  Cell Membrane - it protects the integrity of the interior of the cell.

(F)  Endoplasmic Reticulum - they synthesizes carbohydrates and lipids.

(G)  Golgi Complex - they manufactures, stores and ships certain cellular products.

(H)  Lysosomes - they digest cellular macromolecules.

(I)  Mitochondria - they provide energy for the cell.

(J)  Ribosomes - they responsible for protein production.

(K)  Peroxisomes - they do a variety of jobs like detoxify alcohol, form bile acid, and use oxygen to break down fats

Nucleus is also called the brain of th cell....