Skip to main content
ribosome

ribosome

2 7.5
A small cell structure that makes proteins from messenger RNA
  • noun
  • /ˈraɪbəˌsoʊm/
  • Specialized
: ribosoma
  • For coding regions, transcription results in a complementary mRNA molecule that, with no further modification, is translated at the ribosome.

How does a cell turn on ribosomes, turn them off?

Autoplay Next

Examples

  • Three separate single strands of RNA studded with several dozen proteins make up the ribosome's large and small subunits.

    Academic text (2004)
  • So in addition to the ribosome, we have the mRNA.

  • That mRNA gets translated by a ribosome into a polypeptide chain or a protein.

  • The small subunit of the ribosome contains the medium-length RNA, whose gene has become key for microbial identification.

    Academic text (2004)
  • Though E. coli O157:H7 can harm humans by deactivating ribosomes and destroying kidney cells, cattle can host them without harm.

    Academic text (2006)
  • Microsporidia are tiny, unicellular zoonotic parasites that contain ribosomes but lack mitochondria.

    Academic text (1998)
  • The large subunit of the ribosome has two strings of RNA, one long and one short; the long string functions as a ribozyme, providing enzyme-like activity that forms the peptide bond between amino acids.

    Academic text (2004)
  • Ribosomes are essential for synthesizing proteins in the cell according to the instructions from messenger RNA.

  • During translation, the ribosome reads the sequence of mRNA to assemble the corresponding amino acids into a protein.

  • Each ribosome functions as a factory within the cell, converting genetic information into functional proteins.

Synonyms

microsome
vsribosome
  • Specialized
9.5

A tiny part of a cell where the cell makes proteins from messenger RNA

is a natural cellular organelle that makes proteins under mRNA instruction

Surface Forms

ribosome singular
ribosomes plural

Morphology

ribosome = ribo + some

Formed from specialized combining forms ('ribo-' and '-some') that are not productive or recognizable to average B1 learners, so the meaning cannot be derived from common English words.

Etymology

Ribosome comes from ribo- (from ribose, the sugar in RNA) and -soma meaning 'body'. That's why a ribosome is a tiny 'body' in the cell that reads RNA and builds proteins.