Energy coupling Knowledge-Based Download PDF

Questions

1. 1.

   In cellular metabolism, how do cells most commonly couple the exergonic hydrolysis of ATP to drive an endergonic chemical reaction?

   • A) By releasing free energy solely as heat to increase the kinetic energy of substrate collisions
   • B) By lowering the overall activation energy threshold without forming chemical bonds with substrates
   • C) By converting the adenine base directly into guanine to alter reactant binding affinity
   • D) By transferring a phosphate group from ATP to a reactant to form a reactive phosphorylated intermediate