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An uncatalyzed reaction has a rate of 4.2 x 10-7 sec-1. When an enzyme is added the rate is 3.2 x 104 sec-1. Calculate the rate enhancement caused by the enzyme.

a. the data are not appropriate for the calculation requested

b. 7.4 x 10-3

c. 3.2 x 104

d. 1.34 x 10-2

e. 7.62 x 1010

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