Considering elongation of peptides via ribosome-mediated peptide synthesis,how many ATP equivalents are required for addition of on amino acid to the growing peptide chain and translocation such that the assembly is prepared for the subsequent addition of another amino acid?
A)0
B)1
C)2
D)3
E)4

Question

Quizplus · Accepted Answer

The addition of one amino acid to the growing peptide chain and translocation requires the hydrolysis of two high-energy phosphate bonds from GTP to GDP, which is equivalent to two ATP molecules. Therefore, the correct answer is C) 2.

Considering Elongation of Peptides Via Ribosome-Mediated Peptide Synthesis,how Many ATP