what is the function of ribosome?

Answer 1

The ribosome functions to accept amino acids and assemble them to proteins.

Answer 2

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Ribosomes are the sites of protein synthesis, where RNA is translated into protein. When cells need large numbers of proteins, they must first build numerous ribosomes. Because protein synthesis is so important to cells, there are large numbers of ribosomes found throughout cells often numbering in the hundreds or thousands. In eukaryotic cells, three of the four ribosomal RNA strands are synthesized in the nucleolus, a structure in the nucleus. The fourth ribosomal RNA strand is synthesized outside of the nucleolus and then transported into the nucleolus for ribosome assembly. Ribosomal proteins enter the nucleolus and combine with the four ribosomal RNA strands to create the large and small subunits which are two ribosomal structures. The two subunits unite outside the nucleus just before the ribosome begins to manufacture proteins. Prokaryotic cells lack a nucleus or nucleolus and therefor ribosomal synthesis takes place in the cytoplasms. Without the ribosomes the message would not be read and proteins could not be produced.

Answer 3

A ribosome is a small, dense organelle in cells that assembles proteins. Ribosomes are about 20nm in diameter and are composed of 65% ribosomal RNA and 35% ribosomal proteins (known as a Ribonucleoprotein or RNP). It translates messenger RNA (mRNA) to build a polypeptide chain (e.g., a protein) using amino acids delivered by Transfer RNA (tRNA). It can be thought of as a giant enzyme that builds a protein from a set of genetic instructions. Ribosomes can float freely in the cytoplasm (the internal fluid of the cell) or bound to the endoplasmic reticulum, or to the nuclear envelope. Since ribosomes are ribozymes, it is thought that they might be remnants of the RNA world.[1] While catalysis of the peptide bond does involve the C2' hydroxyl of tRNA's P-site adenosine in a sort of proton shuttle mechanism, the full function (ie, translocation) of the ribosome is reliant on the specific change in many protein conformations.


Ribosomes are an important structure in the cell. Ribosomes were first observed in the mid-1950s by Romanian cell biologist George Palade in the electron microscope as dense particles or granules[2] for which he would win the Nobel Prize. The term ribosome was proposed by scientist Richard B. Roberts in 1958:

The structure and function of the ribosomes and associated molecules, known as the translational apparatus, has been of research interest since the mid 20th century and is a very active field of study today.

Ribosomes are the workhorses of protein biosynthesis, the process of translating messenger RNA (mRNA) into protein. The mRNA comprises a series of codons that dictate to the ribosome the sequence of the amino acids needed to make the protein. Using the mRNA as a template, the ribosome traverses each codon of the mRNA, pairing it with the appropriate amino acid. This is done using molecules of transfer RNA (tRNA) containing a complementary anticodon on one end and the appropriate amino acid on the other.

Protein synthesis begins at a start codon near the 5' end of the mRNA. The small ribosomal subunit, typically bound to a tRNA containing the amino acid methionine, binds to an AUG codon on the mRNA and recruits the large ribosomal subunit. The large ribosomal subunit contains three tRNA binding sites, designated A, P, and E. The A site binds an aminoacyl-tRNA (a tRNA bound to an amino acid); the P site binds a peptidyl-tRNA (a tRNA bound to the peptide being synthesized); and the E site binds a free tRNA before it exits the ribosome.

Answer 4

Ribosome are the site of protein synthesis within the cell. mRNA is sent to ribosome where tRNA builds proteins out of Amino Acids.

Answer 5

Ribosomes are the places where proteins are built out of chains of amino acids.

Answer 6

They carry out the instructions of the DNA. THey are like the workers of a factory.
They make proteins (that are later made into a whole range of things).

Answer 7

ribosomes are small organelles in a cell where proteins are made from amino cells...

Answer 8

package protines