Questions: 2.5.2 Test (CST): Computer-Scored Unit Test Question 23 of 25 The graph below shows how two different enzymes react with a substrate as the temperature increases. Enzyme A Enzyme B Based on the results, what conclusion can be drawn about the action of the enzymes as the temperature increases? A. Enzyme A becomes a better catalyst than B. B. Enzyme A changes faster than B. C. Enzyme A reacts with less substrate than B. D. Enzyme A uses up all the substrate faster than B.

Solution Steps

Examine the graphs for Enzyme A and Enzyme B to understand how their activity changes with temperature. Both graphs show the relative rate of enzyme action on the y-axis and temperature on the x-axis.

Determine the temperature at which each enzyme has the highest activity. For Enzyme A, the peak activity is at 40°C. For Enzyme B, the peak activity is at 50°C.

Compare the activity levels of both enzymes at different temperatures. Enzyme A reaches its peak activity faster (at a lower temperature) than Enzyme B, which peaks at a higher temperature.

Final Answer