This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Translation, Subject name: Biochemistry
[{'content': 'High energy phosphates required to form one peptide bond: \nSelect and explain. \nA. 2, B. 4, C. 6, D. 8', 'role': 'user'}, {'content': 'Answer: B \nExplanation: 2 ATP & 2 GTP (Total 4 high energy phosphates) required to add 1 amino acid in a growing polypeptide chain. Energy required Function 2 ATP Activation of each amino acid 1 GTP For entry at -site of ribosome during elongation of translation 1 GTP For translocation', 'role': 'assistant'}]