Michaelis-Menten kinetics graph

Steps:

• Recall the Michaelis-Menten equation: v = V_max [S] / (K_m + [S]), yielding a hyperbolic curve for v vs. [S].
• Identify V_max as the horizontal asymptote where velocity plateaus.
• Locate K_m as the [S] value where v equals V_max / 2 on the curve.
• Select the graph matching this hyperbolic shape with accurate labels.

Why B is correct:

• It shows the hyperbolic curve approaching V_max asymptotically, with K_m at half V_max, matching the Michaelis-Menten equation.

Why the others are wrong:

• A: Displays linear increase without saturation, violating enzyme kinetics.
• C: Positions K_m incorrectly as the plateau, swapping parameter definitions.
• D: Inverts the curve, showing decreasing velocity with increasing [S].

Final answer: B