The graph below shows the energy changes taking place as a chemical reaction progresses.

If an enzyme is added, which arrow’s magnitude (directional size) will change? Will it increase or decrease?

a
Arrow A will increase
b
Arrow A will decrease
c
Arrow B will increase
d
Arrow B will decrease

The correct answer is c. Arrow B will increase

If an enzyme is added, the correct answer is b. Arrow A will decrease in magnitude.