Here's a breakdown:

* Ribosomes: These are tiny organelles found in all living cells. They are responsible for translating the genetic code from messenger RNA (mRNA) into a chain of amino acids, which then fold into a functional protein.

* mRNA: Messenger RNA carries the genetic instructions from DNA in the nucleus to the ribosomes in the cytoplasm.

So, in short, the ribosomes are the protein factories of the cell.