NTA Abhyas NEET2020ChemistryBiomoleculesPractice
Which of the following statement is correct about competitive inhibitors?
Options
- AThe inhibitor does not resembles the substrate.
- BThe inhibitor competes with the substrate for the allosteric sites.
- CInhibition of succinic hydrogenase by malonate which doesn't resemble the substrate succinate in structure is
- DThis mechanism is used in the control of bacterial pathogens.
Correct answer
D. This mechanism is used in the control of bacterial pathogens.
Step-by-step solution
When the inhibitor closely resembles the substrate in its molecular structure and inhibits the activity of the enzyme, it is known as a competitive inhibitor. Due to its close structural similarity with the substrate, the inhibitor competes with the substrate for the substrate-binding site of the enzyme. Consequently, the substrate cannot bind and as a result, the enzyme action declines, e.g., inhibition of succinic dehydrogenase by malonate which closely resembles the substrate succinate in structure. Such competi