What happens at the P site of a ribosome?
A) It has the binding site for mRNA.
B) It causes the ribosome to attach to the endoplasmic reticulum.
C) It contains the enzyme that catalyzes formation of a peptide bond.
D) It holds the tRNA with the next amino acid to be added to the polypeptide chain.
E) It holds the tRNA with the most recent amino acid that has been added to the polypeptide chain.

Question

Quizplus · Accepted Answer

The P site of a ribosome holds the tRNA carrying the most recent amino acid that has been added to the growing polypeptide chain. This is a key step in the process of translation, where amino acids are sequentially added to elongate a protein.

What Happens at the P Site of a Ribosome