Question

Which one does not exemplify competitive inhibition?

• A. Malonate inhibition of succinate dehydrogenase
• B. Sulphur drugs used to control bacterial pathogens
• C. Inhibition of hexokinase by glucose-$6$-phosphateInhibition of alcohol dehydrogenase by ethanol in methanol poisoning
• D. all of these

Answer 1

The correct option is D all of these

Enzyme inhibitors resemble the substrate molecules and join the active site of enzymes are called competitive enzyme inhibitors. eg:Malonic acid. Malonic acid resemble the substrate molecule succinic acid and join the active site of the enzyme malic dehydrogenase and inhibit the enzyme action. So malonic acid is a competitive enzyme inhibitor. These inhibitors act as bacterial poisons.

So, the correct option is 'all of these'.