Question

What is the rate of denaturation kd, if the half-life of an enzyme catalyzed reaction is 15.6 mins?

(a) 4.4*10^-2/sec

(b) 0.4*10^2/min

(c) 4.4*10^-2/min

(d) 0.4*10^2/sec

The question was asked in a national level competition.

I'd like to ask this question from Enzyme Kinetics Fundamentals in portion Enzyme Kinetics Fundamentals of Enzyme Technology

Answer 1

The correct choice is (c) 4.4*10^-2/min

The best explanation: The half-life of an enzyme is given by, \(t_{1/2}=\frac{0.693}{k_d}\)

kd = \(\frac{0.693}{t_{1/2}}\)

kd =\(\frac{0.693}{15.6}\) = .044 = 4.4*10^-2/min.