Q.

Inhibition of succinic dehydrogenase enzyme by malonate is a classical example of          [2024]

1 cofactor inhibition  
2 feedback inhibition  
3 competitive inhibition  
4 enzyme activation  

Ans.

(3)

Inhibition of succinic dehydrogenase enzyme by malonate, which closely resembles the substrate succinate in structure, is a classical example of competitive inhibition. Such competitive inhibitors are often used in the control of bacterial pathogens.