A plot of 1/V versus 1/[S] for an enzyme-catalyzed reaction gave a line with an equation of y = 0.5x + 0.2.The same enzyme with an inhibitor present gave a line with an equation of y = 1.1_x + 0.2.Which of these statements is correct regarding the inhibition? A)It is competitive. B)It is non-competitive. C)It is uncompetitive. D)It is irreversible.

Question

Quizplus · Accepted Answer

The presence of an inhibitor increases the slope of the line without changing the y-intercept, indicating that the inhibitor increases the Km without affecting the Vmax, which is characteristic of competitive inhibition.

A Plot of 1/V Versus 1/[S] for an Enzyme-Catalyzed Reaction