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Enzyme Kinetics Lab

Michaelis-Menten kinetics with inhibitors, Lineweaver-Burk plots, and real-time reaction animation

Michaelis-Menten Plot

Uninhibited Current [S] marker

Lineweaver-Burk Plot (1/v vs 1/[S])

Uninhibited + Inhibitor

Controls

60
15
30
0
8

Apparent Parameters

Vmax (apparent)
60.0
Km (apparent)
15.0
Current v
-
v / Vmax
-

Reaction Animation

How Inhibitors Work

Competitive
Uncompetitive
Non-competitive
Competitive inhibition: The inhibitor competes with substrate for the active site. Increases apparent Km (lower affinity) but Vmax remains unchanged. On the Lineweaver-Burk plot, lines intersect at the y-axis (same 1/Vmax). Overcome by increasing [S].