mention the role of ribosomes in peptide-bond formation. how does ATP facilitate?

Ribosome is the site where protein synthesis takes place. Ribosomes bind mRNA, help in positioning amino acids and catalyse the joining of amino acids to form peptide bond by its peptidyl transferase activity. Ribosomal RNA of the larger sub-unit of ribosome act as enzyme and catalyse the formation of peptide bond between amino acids. Energy from ATP or GTP is required for the translocation of ribosome to the next codon in mRNA.