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Q.
The figure given below shows three velocity - substrate concentration curves for an enzyme reaction. What do the curves a, b, and c depict respectively ?
Enzymes are proteinaceous catalysts that accelerate a chemical reaction.
In the given figure, curve (a) shows normal enzyme reaction while curve (b) shows a competitive inhibition reaction in which competitive inhibitors that resemble the substrate molecules, bind to the active site of the enzyme and thus slow down the reaction process whereas curve ' (c) ' show non-competitive inhibition reaction in which the inhibitor binds to a part of the enzyme or enzyme substrate complex, other than the active site, known as the allosteric site. This deforms the active site of enzyme. Thus, the enzyme cannot catalyse the reaction.
