What are the differences between nucleus and nucleolus?

Question

Accepted Answer

Basis of differentiation

Nucleus

Nucleolus

Definition

The nucleus is a large, double-membranous organelle found in eukaryotic cells

The nucleolus is a very small, non-membranous spherical sub-organelle found within the cell’s nucleus

Presence of DNA/RNA

Rich in DNA

Rich in RNA

Function

The nucleus is the control center of the cell, acts as storage for the cells genetic information, and regulates gene expression

The nucleolus is responsible for the synthesis and assembly of ribosomes (produce rRNA and ribosomes)

Structure

Is composed of a nuclear envelope, nucleoplasm, nuclear pores, chromosomes, nucleolus, and other subnuclear bodies

Is composed of fibrillar centers, granular component, and dense fibrillar center

Membrane

It is bound by the nuclear membrane

It has no limiting membrane

Basis of differentiation	Nucleus	Nucleolus
Definition	The nucleus is a large, double-membranous organelle found in eukaryotic cells	The nucleolus is a very small, non-membranous spherical sub-organelle found within the cell’s nucleus
Presence of DNA/RNA	Rich in DNA	Rich in RNA
Function	The nucleus is the control center of the cell, acts as storage for the cells genetic information, and regulates gene expression	The nucleolus is responsible for the synthesis and assembly of ribosomes (produce rRNA and ribosomes)
Structure	Is composed of a nuclear envelope, nucleoplasm, nuclear pores, chromosomes, nucleolus, and other subnuclear bodies	Is composed of fibrillar centers, granular component, and dense fibrillar center
Membrane	It is bound by the nuclear membrane	It has no limiting membrane