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Refer to the following graphs and answer the question

 Enzyme inhibitio1












Enzyme inhibition-2














A 20 year- old man was brought to the emergency with vomiting, sweating, drooling and a decreased heart rate. History reveals that he was in a corn field when it was sprayed by a crop duster. The pesticide causing his symptoms is an organo phosphate that covalently binds to acetyl cholinesterase and inactivates the enzyme. The enzyme kinetics affected by the inhibitor are shown in the figures. What is the mechanism of inhibition of this enzyme ?

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