From WikiLectures

General structure of a prokaryotic cell

Prokaryotes form a class of primordial nuclear organisms. It includes the domains:

Bacteria[edit | edit source]

These are the simplest organisms that can be considered as living according to the cell theory and the definition of life. Bacteria are cosmopolitan and a huge number of species is known today. From a medical point of view, only a very small part is important, which can be the cause of infectious diseases for humans.

You can find more detailed information on the Bacteria page

Cyanophyta (Cyanobacteria)[edit | edit source]

Developmentally they occupy the same level as bacteria. They are prokaryotic, autotrophic organisms with non-membrane organelles (thylakoids), which contain chlorophyll, phycocyanin and other dyes used in photosynthesis. They live in water and in humid places. Cyanobacteria are considered to be probably the first source of O2 in the Earth's atmosphere.

Links[edit | edit source]

Related articles[edit | edit source]

Source[edit | edit source]

  • ŠTEFÁNEK, Jiří. Medicína, nemoci, studium na 1. LF UK [online]. [cit. 2009]. <>.
  • NEČAS, Oldřich. Obecná bioogie pro lékařské fakulty. 3. edition. Jinočany : H+H, 2000. ISBN 80-86022-46-3.

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