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BiochemistryMedium

An enzyme follows Michaelis-Menten kinetics with a Km of 2 mM. When substrate concentration is 2 mM, the reaction velocity is measured at 15 μmol/min. What is the Vmax of this enzyme?

A.15 μmol/min
B.30 μmol/min
C.7.5 μmol/min
D.60 μmol/min

✓ Correct! By the Michaelis-Menten equation, when [S] = Km, v = Vmax/2. Since v = 15 μmol/min at Km, Vmax = 30 μmol/min.

BiologyBiochemistryGen ChemOrg ChemPhysicsPsychologySociologyCARS

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