Six facts about prokaryotic cells

Six facts about prokaryotic cells

Bacteria are an example of prokaryotic cells.

Prokaryotic cells do not have a membrane-bound nucleus, their DNA is circular and naked.

Prokaryotic cells are very small (an average bacterial cell is around 8 micrometres long).

These cells do not have any membrane-bound organelles such as mitochondria.

Prokaryotic cells may have a cell wall but, it is not made of cellulose .

These cells may contain extra DNA in structures called plasmids.

There are 1 million micrometres in a metre. A polymer of beta glucose. Its long, straight molecules are held together with hydrogen bonds, producing tough cellulose fibres.