The important functions of ribosome during translation are as follows.

Ribosome acts as the site where protein synthesis takes place from individual amino acids. It is made up of two subunits. The smaller subunit comes in contact with $mRNA$ and forms a protein synthesizing complex whereas the larger subunit acts as an amino acid binding site.

Ribosome acts as a catalyst for forming peptide bond. For example, $23 s r-R N A$ in bacteria acts as a ribozyme.