What is a ribosome?

A ribosome is a cell organelle that produces proteins in the cell.

A ribosome is a particle-like cell organelle made of RNA (ribonucleic acid) and ribosomal proteins that serve as the site for protein synthesis in the cell. Ribosomes consist of two major components: the small and large ribosomal subunits. Scientists like to call ribosomes, the macromolecular machines, to admire how exquisite the design of ribosomes is!

The ribosome reads the sequence of the messenger RNA (mRNA) and, using the genetic code, translates the sequence of RNA into a sequence of amino acids (a process called Translation).


[In this figure] An analogy for ribosomes in a factory.
Ribosomes work like machines to translate the code sequence of mRNA into a protein. Scientists like to call ribosomes, the molecular micro-machines, to admire how exquisite the ribosomes’ design is!

Extended read:

Ribosome function and their structure a

Ribosome – protein factory – definition, function, structure, and biology

  • What is a ribosome? A quick definition
  • Ribosomes structure
  • Ribosome function – protein translation
  • Do prokarytes have ribosomes?
  • The discovery of ribosomes
  • Where are ribosomes located inside a cell?
  • How many ribosomes in a cell?
  • Where are ribosomes made?
  • What is a Polysome?
  • What does co-translational translocation mean?
  • What is the ribosome binding site?
  • What is the ribosome profiling?
  • Ribosomes under a microscope