Ribosomes

Ribosomes are the factories in the cell in which proteins are produced. A small part on a DNA corresponding to the amino acid sequence for the protein is copied to a messenger RNA in the cell nucleus and transported to the ribosomes in the cytoplasm. There the amino acids are combined to a protein according to this information.

https://de.wikipedia.org/wiki/Ribosom _{(Wikipedia CC-by-sa-3.0)}