Enzyme Catalysis

A catalyst speeds the rate of reaction but does not alter the position of the equilibrium E + S ^ E + P. Reaction speed is increased by lowering the activation energy barrier between the reactants and products. Figure 11.7 illustrates this effect. The top graph shows the total energy of the system as the reaction proceeds, the horizontal axis representing the progress energy energy

without enzyme progress of reaction (a)

without enzyme progress of reaction (a)

energy energy

with enzyme

Was this article helpful?

0 0

Post a comment