Question

To answer this question, please reference the Problem Solving Video: Free Energy, ATP, and Creatine in Resting Muscles. The standard free energy, AGⓇ', value for an enzymatic reaction with several al components is the sum of the AGⓇ values for each component. Creatine kinase catalyzes the transfer of a phosphate group from creatine phosphate to ADP to form ATP. Standard Free Energy of Hydrolysis Standard E Compound kJ.mol-1 creatine phosphate -43.1 ATP (to ADP) -30.5 creatine phosphate +H,0 creatine + Pi ADP + Pi + ATP + H2O The AG of hydrolysis for each phosphate-containing compound appears in the table. What are the AG' values for the component reactions of the creatine kinase reaction? O 43.1 kJ.mol- and 30.5 kJ.mol-1 0 -43.1 kJ.mol--and – 30.5 kJ.mol-1 O 43.1 kJ.mol- and -30.5 kJ.moll 0 -43.1 kJ.mol-2 and 30.5 kJ.mol? Which component of the creatine kinase reaction supplies the free energy for the overall reaction? ATP+H,0 ADP +P; ADP +P; ATP+H,0 creatine + Pi + creatine phosphate + H,0 creatine phosphate +H,0 + creatine + P O

Answer 1

Ans 1.) D : - 43.1kJ. mol-1 and 30.5 kJ.mol-1

Ans 2.)

Creatine Phosphate + H20 ----------> Creatine + Pi