The structure and function of key prokaryotic cell structures ... For example, mycoplasmas do not have a cell wall. 12 These organisms rely on their cell membrane for structural integrity and often ...

Bacteria are amongst the simplest of organisms – they are made of single cells. Their cell structure is simpler than the cells of animals, plants and fungi.

It can be studied using sampling techniques, and organisms can be classified according ... DNA and inheritance – WJEC What is DNA and how is the structure of this hereditary molecule responsible ...