The ribosome is a complex of ribosomal RNA (rRNA) and protein. It is essential for translation.
The ribosome holds the mRNA in place and catalyses the formation of peptide bonds between neighbouring amino acids on the elongating polypeptide chain.
The ribosome is made up of two subunits: the large and the small ribosomal subunits.
The small ribosomal subunit holds the mRNA strand in place, while the large ribosomal subunit forms the peptide bonds between the amino acids.