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Question- In a kinetic characterization of carbonic anhydrase, the enzyme concentration was 0.05 uM. The Km is 26 mM and the maximum rate at whick 0.05 uM carbonic anhydrase can break down sodium bicarbonate is 20 mMs^-1. If the initial reaction rate in a particular test tube is 5 mMs^-1, what is the initial bicarbonate concentration in that tube? Please show all work so that I can understand!

A) 3.9 mM

B) 1.3 mM

C) 8.7 mM

D) 130 mM

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