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An enzyme was assayed, the velocity was measured over a range of substrate concentrations, and the results were used to construct a Lineweaver-Burk plot. The results are depicted in the graph with the blue line. The enzyme assay was done in the presence of an inhibitor, and results are shown in the red line.

Which of the following describes the type of inhibitor?

The x axis is 1/[substrate] and the y axis is 1/velocity. Kelly Keenan. Created for Copyright 2016. All rights reserved.


Competitive inhibitor.


Noncompetitive (mixed).


Uncompetitive inhibitor.


Negative effector.

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