The dashed (lower) curve represents an enzyme-catalyzed reaction. Compared to the uncatalyzed version, the enzyme
- Acheck_circle
Lowers the activation energy without changing equilibrium
- B
Adds energy to products by coupling to ATP hydrolysis nearby
- C
Changes the equilibrium constant and shifts ΔG toward products
- D
Replaces the substrate with a modified form before reacting
Explanation
Enzymes only speed up reactions by lowering E_a. They cannot make a thermodynamically unfavorable reaction proceed.