Figure 3-1
-Refer to Figure 3-1. Suppose you conduct an experiment in the laboratory in which you add increasing amounts of substrate to a solution containing an enzyme and a pH buffer. You incubate the container at the optimal temperature for the enzyme. Each time you add more substrate, you measure the rate of the reaction. Also suppose that you graph the results such that the x-axis shows the substrate concentration and the y-axis shows the resulting reaction rate. What will you find over time?

Question

Figure 3-1 
-Refer to Figure 3-1. Suppose you conduct an experiment in the laboratory in which you add increasing amounts of substrate to a solution containing an enzyme and a pH buffer. You incubate the container at the optimal temperature for the enzyme. Each time you add more substrate, you measure the rate of the reaction. Also suppose that you graph the results such that the x-axis shows the substrate concentration and the y-axis shows the resulting reaction rate. What will you find over time?

Quizplus · Accepted Answer

The rate of reaction increases with substrate concentration due to more frequent collisions between substrate molecules and the enzyme. However, it eventually plateaus when all enzyme active sites are saturated with substrate, meaning the enzyme is working at its maximum capacity and cannot increase the reaction rate further regardless of additional substrate. This results in a graph that rises sharply at first and then levels off, not a bell curve, sharp decline to zero, or a linear increase indefinitely.

Figure 3-1 -Refer to Figure 3-1. Suppose You Conduct an Experiment in an Experiment