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In the problem book, question 3-1 B, and 3-3 C...re: competitive/non-c.  
inhibitors. How can I tell if the inhibitor is competitive or not?
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The (apparent) Km measured in a plot of Vo vs. S in the presence of the
inhibitor will be higher than in the absence of the inhibitor. A
non-competitive inhibitor will have no effect on Km measurement.  A
noncompetitive inhibitor will decrease the Vmax of a reaction in a Vo vs,
S experiment. A competitive inhibitor will not do this.  The structure of a
competitive inhibitor will resemble that of the substrate.  A
non-competitive inhibitor need have no such resemblance, and usually does not
resemble the substrate.
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