Multiple choice

Directions: The study about reaction rate and their changes depending on the changes in experimental parameters such as temperature, concentration of substrate and pH is known as enzyme kinetics.

What is the significance of Kcat/Km ratio?

  1. Denotes the constant for ES formation

  2. Denotes Michaelis constant

  3. Denotes specificity constant

  4. Denotes turn-over number

  5. Denotes the constant for ES disappearance
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The ratio Kcat/Km is similar to the rate constant of the reaction between substrate and the enzyme. Kcat/Km is known as the specificity constant which signifies the efficiency of an enzyme.

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