Starting point: in a eukaryotic cell, most protein synthesis occurs in the cytosol

1.A common pool of ribosomal subunits in the cytosol. 2.Is used to assemble ribosomes on mRNAs encoding cytosolic proteins: these remain free in the cytosol. 3.Multiple ribosomes assemble, producing free cytosolic polyribosomes (polysomes). 4.Newly made proteins are released to the cytosol once their synthesis is complete and the ribosomes are dismantled, returning back