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Suppose a genetically engineered enzyme (E) is introduced into a soil sample in order to break down the trace amounts of a toxic substance (S). Unfortunately, within the same soil sample is a competitive inhibitor (heavy metal) which reduces the effectiveness of the enzyme. How does varying the concentration of the inhibitor affect V_max? If you were to reduce the concentration of I by 1/2 how would this change the initial rate? How might one overcome the effect of the inhibitor in order to obtain the largest V_max?