(Solved): Enzyme Catalysis Example Penicillinase is an enzyme that destroys the antibiotic penicillin. For t ...

Enzyme Catalysis Example Penicillinase is an enzyme that destroys the antibiotic penicillin. For this enzyme: $$\begin{array}{l}{K}_M=5.0\times 10^{?5}\mathrm{M}\\ k_2=2000{\mathrm{s}}^{?1}\end{array}$$ (a) What is the reaction order with respect to the substrate (penicillin) if the concentration of penicillin is $$5.0\mathrm{mM}$$ ? (b) If the decay of penicillin is observed to be zero order with a reaction rate of $$1.6\times 10^{?6}\mathrm{M}{\mathrm{s}}^{?1}$$, what is the concentration of the enzyme penicillinase?