The following results were obtained for the action of an ATPase on ATP at 20.°C, when the concentration of the ATPase was 20. nmol·dm−3. [ATP]/(µmol·dm−3) 0.60 0.80 1.4 2.0 3.0 v/(µmol·dm−3·s−1) 0.90 1.10 1.48 1.72 1.99 Evaluate the Michaelis constant and the maximum velocity of the reaction. KM = ? vmax = ?

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