Use the following information to answer the questions below….

Use the following information to answer the questions below.A series of enzymes catalyze the reaction X  Y  Z  A. Product A binds to the enzyme that converts X to Y at a position remote from its active site. This binding decreases the activity of the enzyme.What is substance X?

To attach a particular amino acid to the tRNA molecule that…

To attach a particular amino acid to the tRNA molecule that will transport it, an enzyme, an aminoacyl-tRNA synthetase, is required, along with ATP. Initially, the enzyme has an active site for ATP and another for the amino acid, but it is not able to attach the tRNA. What must occur for the final attachment to occur?