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A ribosome is a cell organelle. It functions as a micro-machine for making proteins. Ribosomes are composed of special proteins and nucleic acids. Ribosomes are found ‘free’ in the cytoplasm or bound to the endoplasmic reticulum (ER) to form rough ER. In a mammalian cell there can be as many as 10 million ribosomes.
Several ribosomes can be attached to the same mRNA strand, this structure is called a polysome. Ribosomes have only a temporary existence. When they have synthesized a polypeptide, the two sub-units separate and are either re-used or broken up. Ribosomes are bound by a membrane.
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The sites of protein synthesis are?
Protein synthesis occurs at ribosomes, which can be found in the cytoplasm of a cell. In eukaryotic cells, proteins can also be synthesized on ribosomes located on the rough endoplasmic reticulum.
What tiny organelles are attached to the ER?
ribosomes
What are unattached ribosomes in the cytosol called?
Free ribosomes.
What are the differences between prokaryotic ribosomes and eukaryotic ribosomes?
Prokaryotic ribosomes are smaller (70S) compared to eukaryotic ribosomes (80S). Prokaryotic ribosomes consist of a 30S and a 50S subunit, while eukaryotic ribosomes consist of a 40S and a 60S subunit. Prokaryotic ribosomes have fewer proteins compared to eukaryotic ribosomes.
What organelles read codes genetic measages?
Ribosomes are the organelles that read coded genetic messages. Ribosomes can be found in all living cells.
What type of cell is ribosomes?
Ribosomes are organelles. All cells have ribosomes.
Are ribosomes in protests?
Yes they contain ribosomes.80S ribosomes are found in them.
Do plantcells have ribosomes?
Yes they contain ribosomes.80S ribosomes are found in them.
What is the Ribosomes found in?
Cells are not found in ribosomes. Ribosomes are found in (eukaryotic) cells.
What does the cells ribosomes do in the plant cell?
The ribosomes are the site of protein synthesis.
Is ribosomes prokaryote?
70s ribosomes are in prokaryotes.80s ribosomes are found only in eukaryotes.
Is ribosomes a prokaryotes?
70s ribosomes are in prokaryotes.80s ribosomes are found only in eukaryotes.
