Chemistry - Biomolecules Question with Solution | TestHub
Which one of the following statements regarding enzyme inhibition is correct?
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Answer:
Solution:
Competitive inhibition is a reversible inhibition where inhibitor competes with the substrate for the active site of an enzyme. A competitive inhibitor is usually chemically similar to the substrate and therefore, fits into the active site of an enzyme and binds with it. The inhibition is thus due to substrate analogue. The enzyme, now cannot act upon the substrate and reaction products are not formed. Hence, the action of an enzyme may be reduced or inhibited. Since a competitive inhibitor occupies the site only temporarily, the enzyme action is not permanently affected. The activity of succinate dehydrogenase is inhibited by malonate and is the most common example of competitive inhibition.
