2.2 Prokaryotic cells

- unicellular organisms 

- don't contain a nucleus

- have DNA located in the nuclear area

- smaller than eukaryotic cells

storage of genetic material/information, the site of DNA replication. It consists of a circular chromosome of about 4000 genes

The site of protein synthesis, the translation of RNA

These bring about movement of the bacterium in external medium, and may play a role in sexual conjugation

- Enable adhesion to surfaces and other bacteria 

- assisting in sexual conjugation

- the region where metabolic reactions occur

- Permeable boundary allows for entry and exit of nutrients and waste

- may play a role in DNA replication 

barrier in which all nutrients and waste products must past

Protects against mechanical and hypertonic stress, rupture caused by osmosis and possible harm from other oragnisms

Aid DNA exchange. These are DNA molecule capable of replicating 

in the right conditions they can divide rapidly by binary fission

usually asexual reproduction

- The DNA is first replicated, then it attaches itself to the plasma membrane

- The cell then elongates to separate the chromosomes

- The membrane then invaginates, pulling itself together in the middle

- the cell then splits into the two daughter cells