Prokaryotic and Eukaryotic Cells

Basic information about Prokaryotic and Eukaryotic Cells

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Prokaryotic Cells

-Bacteria and Cyanobacteria (photosynthetic bacteria) make up the 'Prokaryotae-Kingdom'.

- Example of a Prokaryotic Cell= A Bacterium

-They do not have a nuclei or other membrane- bound cell organelles such as a nuclear envelope and mitochondria.

-Prokaryotic cell means 'before the nucleus'                                 

-Most prokaryotes are extremely small with diameters between 0.5 and 5μm.

-A cell wall is always present in prokaryotic cells                                  (http://www.fluwiki.info/uploads/Science/prokaryotic_cell.png)               

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Eukaryotic Cells

- They are all other living organisms that have cells that contain discrete membrane-bound organelles such as a nuclei, mitochondria and chloroplasts (in plants only).

-An example= A plant or animal cell

-Eukaryotic Cells means 'true nucleus'

-They are larger than prokaryotic cells with diameters of 20μm or more.

-Unlike the prokaryotes, not all eukaryotic cells have a cell wall

-Organisms with eukaryotic cells are called 'eukaryotes'                 (http://www.earthlife.net/images/eury-cell.gif)

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Comments

Hissyfit

Which exam board is this for_ ,could you please tag it to that exam board,thanks :)

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