Following peptide bond formation between the amino acid in the A site on the ribosome and the growing polypeptide chain, the tRNA in the A site:

A) releases the growing polypeptide chain
B) picks up another amino acid to add to the chain
C) moves to the P site of the ribosome
D) forms a peptide bond with A site of the ribosome
E) forms a covalent bond with the P site of the ribosome

Peptide Bond Formation

A biochemical process that involves the joining of two amino acids through a covalent bond between the amino group of one and the carboxyl group of the other, releasing a molecule of water.

tRNA

Transfer RNA; a type of RNA molecule that helps decode a messenger RNA (mRNA) sequence into a protein during the process of translation in protein synthesis.

Ribosome

Molecular machines within cells that synthesize proteins by translating the information contained in messenger RNA.