Question

The energy used directly for the elongation step of translation comes from?

1) ATP hydrolysis
2) nucleotide condensation
3) peptide bond formation
4) GTP hydrolysis

Answer 1

The energy used for the elongation step of translation comes from GTP hydrolysis.

Step-by-step explanation:

During the elongation step of translation, the energy used comes from GTP hydrolysis. GTP, a molecule similar to ATP, is hydrolyzed by elongation factors to provide the necessary energy for each step of the ribosome. Peptide bonds form between the amino group of the amino acid attached to the A-site tRNA and the carboxyl group of the amino acid attached to the P-site tRNA, catalyzed by peptidyl transferase.