Question

Match the ribosome binding site with its function. NOTE- one is not an actual binding site.  ...

Match the ribosome binding site with its function. NOTE- one is not an actual binding site.  

(Please choose the correct answer --> Where tRNAs exit the ribosome, Holds the tRNA attached to the growing polypeptide chain, Where a new tRNA, holding the next amino acid, enters, This is not an actual site on the ribosome)

A. The P Site ( Where tRNAs exit the ribosome, Holds the tRNA attached to the growing polypeptide chain, Where a new tRNA, holding the next amino acid, enters, This is not an actual site on the ribosome)

B. The A Site ( Where tRNAs exit the ribosome, Holds the tRNA attached to the growing polypeptide chain, Where a new tRNA, holding the next amino acid, enters, This is not an actual site on the ribosome)

C. The E Site ( Where tRNAs exit the ribosome, Holds the tRNA attached to the growing polypeptide chain, Where a new tRNA, holding the next amino acid, enters, This is not an actual site on the ribosome)

D. The R Site ( Where tRNAs exit the ribosome, Holds the tRNA attached to the growing polypeptide chain, Where a new tRNA, holding the next amino acid, enters, This is not an actual site on the ribosome)

Please choose the correct answer, no need to add additional information. thanks

Homework Answers

Answer #1

A. P site- Holds the tRNA attached to the growing polypeptide chain,

The P site, called the peptidyl site, binds to the tRNA holding the growing polypeptide chain of amino acids.

B. A site- Where a new tRNA, holding the next amino acid, enters

The A site (acceptor site), binds to the aminoacyl tRNA, which holds the new amino acid to be added to the polypeptide chain.

C. E site- Where tRNAs exit the ribosome

The E site (exit site), serves as a threshold, the final transitory step before a tRNA now leaves its amino acid is let go by the ribosome.

D. R site- This is not an actual site on the ribosome

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