Contents
Key Stage 4
Meaning
A prokaryotic cell is a simple cell which contains no membrane bound organelles.
About Prokaryotic Cells
- Prokaryotic cells include bacteria and some types of algae.
- Prokaryotic cells have a loop of DNA floating freely in the cytoplasm.
- Prokaryotic cells have no nucleus, mitochondria or chloroplasts.
- Prokaryotic cells are usually much smaller than eukaryotic cells.
- In the three domain system prokaryotes include both bacteria and archaea.
Examples
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| A diagram showing an E.coli bacterium which is a prokaryote. |
References
AQA
- Prokaryotic cells, page 23, GCSE Combined Science Trilogy; Biology, CGP, AQA
- Prokaryotic cells, page 23-4, 41, GCSE Biology; Student Book, Collins, AQA
- Prokaryotic cells, pages 23, 38, GCSE Biology, CGP, AQA
- Prokaryotic cells, pages 8-9, GCSE Biology; Third Edition, Oxford University Press, AQA