A) competitive inhibition
B) non-competitive inhibition
C) feedback allosteric inhibition
D) positive feedback
Correct Answer: C
Solution :
[c] Competitive inhibition is the reversible inhibition of enzyme activity due to presence of substrate analogues. Noncompetitive inhibition is the reduction of enzyme activity by a factor that has no real structural similarity with the substrate. Allosteric inhibition is reversible noncompetitive inhibition occurring in case of allosteric enzymes. Herein the inhibitors are the products or intermediates of reactions catalyzed by the enzymes. Hence it is also called end product inhibition or feedback inhibition.
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