The graphs below compare the effects of two different enzymes that react with the same substrate.
Enzyme A
Enzyme B
115
10 20 30 40 50 60 70 80
0 10 20 30 40 50 60 70 80
Temperature (°C)
Temperature (°C)
Which conclusion do the data in the graphs support?
A. Enzyme A is still effective at higher temperatures than enzyme B
B. Enzyme B works faster on the substrate at 40°C than enzyme A.
C. Enzyme A is more useful than enzyme B for different reactions.
D. Enzyme B is a better catalyst at 70°C than enzyme A