Biological systems usually held at constant temperature and pressure

1Chemical reactions are reversible; they can proceed in both theforward and reverse directions. If the ΔG° for the reaction Y→X isenergetically favorable, how can you explain the fact that not all of theY molecules will be converted to X molecules?2Enzymes A and B catalyze different reactions, but use the samereactant molecule as a substrate. The graph in Figure Q3-47 presentsthe reaction rates observed when enzyme A and enzyme B are mixedtogether in a single test tube containing molecule X. What are the Vmaxand the apparent Km values for each enzyme under these conditions?How might these values change for enzyme B if it were analyzed in theabsence of enzyme A? Explain your answer.Figure Q3-47Activated Carrier Molecules and Biosynthesis