Biology · University
Michaelis-Menten model rate · formula reference
Assume the stated steady-state model applies; Vmax and v share units, and Km and substrate concentration share units.
Formula
Assume the stated steady-state model applies; Vmax and v share units, and Km and substrate concentration share units.
v = Vmax[S]/(Km+[S])
Worked example
Under a Michaelis-Menten model, Vmax=149 μmol/min, Km=1 mM, and [S]=18 mM. Calculate v. Round the final result to 4 decimal places if needed. Answer in μmol/min.
Substitute into v=Vmax[S]/(Km+[S]): 149(18)/(1+18).
141.1579 μmol/min
Prerequisites and checking
Algebra and the topic definitions. Keep units and rounding consistent. State the model conditions before applying the formula.
Further reading and review references
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