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Biology 2nd Baccalaureate

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1.2.1. The prokaryotic cell

Prokaryotic cells

The bacteria are organisms prokaryotesThe main difference with eukaryotic cells is that they do not have a true nucleus. They are unicellular organisms that have different shapes, but with a common basic structure:

Célula procariota con todas sus partes

By Ali Zifan [CC BY-SA 4.0], from Wikimedia Commons

Its size is smaller than that of eukaryotic cells, similar to that of the mitochondria and chloroplasts of eukaryotic cells.

Despite being very simple, they have DNA forming a bacterial chromosome that allows them to reproduce, and copy the information to RNA that will be read by ribosomes and will make the proteins necessary for the life of the bacteria.

Trabajo de Adrián, alumno del IES Ramón Pignatelli.


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Biology and Geology teaching materials for Compulsory Secondary Education (ESO) and Baccalaureate students.