The enzyme catalysed conversion of a substrate at 25 C has a Michaelis constant of 90moldm 3 and a maximum velocity of 22 4mol dm 3 s 1 when the enzyme concentration is 1 60 nmol dm 3 (a) Calculate k cat and (b) Is the enzyme catalytically perfect

Question: The enzyme-catalysed conversion of a substrate at 25 C has a Michaelis constant of 90moldm 3 and a maximum velocity of 22.4mol dm 3 s

The enzyme-catalysed conversion of a substrate at 25 °C has a Michaelis constant of 90µmoldm⁻³and a maximum velocity of 22.4µmol dm⁻³ s⁻¹ when the enzyme concentration is 1.60 nmol dm⁻³.

(a) Calculate k_cat and η.

(b) Is the enzyme ‘catalytically perfect’?

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