Question

What is the role of ribosomes in translation?

Answer 1

1. A ribosome is an intercellular structure made of both RNA and protein, and it is the site of protein synthesis in the cell.

2. In translation, messenger RNA (mRNA) is decoded in a ribosome, outside the nucleus, to produce a specific amino acid chain or polypeptide.

Role of ribosomes in translation:

1. Ribosomal subunits bring together mRNA template and tRNA bound with amino acids for polypeptide formation.

2. Ribosomal RNA catalyzes protein synthesis.

3. The new incoming tRNA binds to the A site and the P site of the ribosome carries the growing polypeptide chain.

4. Ribosomes decode the mRNA sequence and a long polypeptide chain is formed.