According to, cellular organisms that do not have a distinct nucleus, such as bacteria, are called prokaryotes. They are distinct from the eukaryotes, which are the cellular organisms that contain a nucleus... More »

All cells do not necessarily have a nucleus. Cells with a defined nucleus are called eukaryotic cells, while cells possessing no nucleus are called prokaryotic cells. More »

Prokaryotic cells do not have a true nucleus. The word "prokaryotic" means "before nucleus." Eukaryotic cells, on the other hand, came after the prokaryotes and contain structures not present in prokaryotic cells. More »

One main difference between protists and bacteria is that protists are eukaryotic organisms, while bacteria are prokaryotes. Another difference is that protists belong to the kingdom Protista, while bacteria are members ... More »

Prokaryotic cells are single cells that evolved before eukaryotes, which are organisms whose cells contain nuclei and organelles. A prokaryotic cell has no true nucleus or membrane-bound structures called organelles. Pro... More »

A cell without a nucleus is classified as a prokaryotic cell. The genetic material of prokaryotic cells is free inside the cytoplasm. Prokaryotic cells do not have a need for compartmentalization, unlike more complex cel... More »

If the nucleus of a cell becomes damaged by a xenobiotic substance, it can prevent the cell from dividing and lead to other problems. In many cases, the damage eventually causes the death of the cell. More »