An enzyme obeys Michaelis-Menten kinetics. Its initial rate is 30 µmol min⁻¹ at a substrate concentration of 3 mM, and 40 µmol min⁻¹ at 6 mM. Which pair of constants fits both measurements?

BiologyAdvancedHigh School (11–12)Heredity and Evolution › Heredity and Inheritance Olympiad

An enzyme obeys Michaelis-Menten kinetics. Its initial rate is $30\ \mu\text{mol min}^{-1}$ at a substrate concentration of $3\ \text{mM}$ , and $40\ \mu\text{mol min}^{-1}$ at $6\ \text{mM}$ . Which pair of constants fits both measurements?

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← A dihybrid AaBb plant is test crossed to aabb, and independent assortment predicts four equal classes. Among 400 progeny the classes are 112, 98, 95 and 95. The critical value of chi-square at the 5% level is 7.81 for 3 degrees of freedom and 9.49 for 4. Which conclusion is correct?Without an inhibitor an enzyme has Vmax = 100 µmol min⁻¹ and Km = 2.0 mM. With an inhibitor at 6.0 mM it has Vmax = 100 µmol min⁻¹ and an apparent Km of 5.0 mM. The inhibitor binds reversibly. Which description is correct? →

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