Ribosome meaning

rībə-sōm
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A structure composed of RNA and protein, present in large numbers in the cytoplasm of living cells and serving as the site for assembly of polypeptides encoded by messenger RNA.
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The definition of a ribosome is a tiny particle made up of nucleic acids and proteins that exist in large numbers in the gel-like substance in between every cell in the body.
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Ribosome gets its name from "ribonucleoprotein particles" and "microsomes" which are both particles inside the cell. Richard B. Roberts suggested "ribosome" in 1958.
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Ribosome refers to ribonucleoprotein particles in sizes ranging from 35 to 100S.

An example of a ribosome is one of the particles located outside of a cell that helps build proteins.

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In 1955, George Palade, a cell biologist, along with Philip Siekevitz, discovered ribosomes and identified their function as making proteins.
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A minute, spherical particle composed of RNA and proteins and present in great numbers in the cytoplasm of cells: proteins are manufactured at the ribosomal surface following genetic instructions carried there by messenger RNA.
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A structure composed of RNA and protein, present in large numbers in the cytoplasm of living cells and serving as the site for assembly of polypeptides encoded by messenger RNA.
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A sphere-shaped structure within the cytoplasm of a cell that is composed of RNA and protein and is the site of protein synthesis. Ribosomes are free in the cytoplasm and often attached to the membrane of the endoplasmic reticulum . Ribosomes exist in both eukaryotic and prokaryotic cells. Plastids and mitochondria in eukaryotic cells have smaller ribosomes similar to those of prokaryotes.
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(biology) Small organelles found in all cells; involved in the production of proteins by translating messenger RNA.
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Origin of ribosome

  • ribo(nucleic acid) –some

    From American Heritage Dictionary of the English Language, 5th Edition