rRNA or ribosomal ribonucleic acid is part of the ribosome, which helps translate and decode messages. The ribosome is an important part of our body. It is responsible for translating information from messenger RNA into the materials that make up proteins, which are known as amino acids. Ribosomes are a part of all organisms that contain cells and are very complex. The ribosome has distinct proteins, which are separated into two unique "ribosomal" pieces. These different pieces are the sub-unit of a ribosome. Each ribosome has two important components: the large sub-unit and the small sub-unit. The large sub-unit is in charge of forming polypeptides by joining with the amino acids. The small sub-unit is responsible for reading the RNA (ribonuceic acid). Ribonucleic acid is a nucleic acid that helps decode and convey genetic messages.