Question

based on figure 2.2, please identify the reaction that proceeds with an enzyme.
figure 2.2
a
reactant
product
energy released energy supplied
activation
energy
b
reactant
product
energy released energy supplied
activation
energy

Explanation:

Step1: Recall Enzyme's Role

Enzymes lower activation energy of a reaction. So the reaction with lower activation energy (smaller activation energy barrier) is the one with enzyme.

Step2: Compare Activation Energies

In Figure A, activation energy (the vertical distance from reactant to peak) is larger. In Figure B, the activation energy is smaller (shorter vertical segment labeled activation energy). So Reaction B has lower activation energy, meaning it proceeds with an enzyme.

Answer:

Reaction B (the reaction shown in Figure B)