Ribosome: Most Important Organelle

Amy Hunzinger

Where is it located?

They are located in the cytoplasm of both eukaryotic cells and prokaryotic cells. Ribosomes are only attached to the rough ER in eukaryotic cells.

What does it look like?

Ribosomes have two subunits a large and a small one. In prokaryotic cells both subunits are smaller than the ones in the eukaryotic cells. Ribosomes are made of ribonucleic acid and related proteins.

What does it do?

Ribosome are the sites of protein synthesis which is when individual cells build specific proteins. The use the cells genetic information to create proteins the cell can use. They bind mRNA (messenger RNA) and (transfer) tRNA to proteins and polypeptides (many amino acid residues bonded to form a chain). RNA is ribonucleic acid.

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Why it is the most important organelle...

The ribosome makes proteins for cells. If there were no ribosomes there would be no proteins which means there would be other organelles.