Question

Why is the nucleus important to the cells?

Answer 1

Hint: The chromosomes of a cell are housed in the nucleus, which is a membrane-bound organelle. Molecules can travel through pores in the nuclear membrane, allowing them to enter and exit the nucleus.

Complete answer:
For all cells, the nucleus is extremely vital. It is known as the 'Brain of the Cell' since it controls the cell's functions. It includes genetic material (DNA or RNA) that is handed down through the generations, and so on. The nucleus is one of the most essential components in eukaryotic cells because it functions as a store, retrieval, and duplication centre for genetic material. It's a double-membrane-bound organelle that houses chromatin, which is genetic material. A membrane surrounds the nucleus, keeping all of the chromosomes inside but separating them from the numerous organelles and cell components that remain outside. The nucleus houses the cell's DNA and controls ribosome and protein production. The nucleolus is a condensed area of chromatin found within the nucleoplasm where ribosome synthesis takes place. The nucleoplasm stores chromatin, which is made up of DNA wrapped around histone proteins.

Note:
Perforations in the nuclear membrane allow molecules to enter and exit the nucleus, which is necessary for RNA to transit between the nucleus and the cytoplasm. The nuclear membrane was originally thought to only allow molecules to leave the nucleus, but it has since been shown that it also allows molecules to enter the nucleus.