Question

In what ways nucleus and the nucleolus are different?

Answer 1

Nucleus:

1. It is referred to as the brain of the cell.
2. It is present at the centre of the cell.

Nucleolus:

1. It is just a part of the nucleus.
2. It is present inside the nucleus.

Difference between the nucleus and nucleolus:

Nucleus	Nucleolus
1. It is one of the main organelles of the cell.	1. It is a sub-organelle of the cell.
2. Nucleus is a double membrane-bound structure.	2. Nucleolus has no membranes.
3. Nucleus contains DNA.	3. Nucleolus contains RNA.
4. It controls and helps in the regulation of all cellular activities.	4. Its main function is the synthesis of proteins and ribosomes.

Figure showing nucleus & nucleolus: