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6. Technically an inhibitor that binds at a site other than the substrate-bindin

ID: 545541 • Letter: 6

Question

6. Technically an inhibitor that binds at a site other than the substrate-binding site can be called allosteric. However, for enzymes that obey M-M kinetics, these inhibitors are just called uncompetitive or non-competitive inhibitors. Describe how the allosteric and non-competitive inhibitors differ with respect to the following effects. a. inhibition can be overcome at higher substrate concentrations. b. inhibitors reduce Vmax 7. The coenzyme in the reaction catalyzed by lactate dehydrogenase is

Explanation / Answer

7)

Co enzyme for Lactate dehydrogenase that helps the enzyme to catalyze the dehydrogenation of lactate to pyruvate is nicotinamide adenosine dinucledotide (NAD+). NAD+ acts as an oxidizing agent. At the end of the reaction NAD+ is reduced to NADH.

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