question_answer

Arrange the steps of catalytic action of an enzyme in right order and select the correct option.

(i) The enzyme releases the products of the reaction and the enzyme is free to bind to another substrate.

(ii) The active site of enzyme is in close proximity of the substrate and breaks the chemical bonds of the substrate.

(iii) The binding of substrate induces the enzyme to alter its shape fitting more tightly around the substrate.

(iv) The substrate binds to the active site of the enzyme fitting into the active site.

A)  (iv), (iii), (ii), (i)

B)  (iii), (ii), (i), (iv)

C)  (iv), (ii), (i), (iii)  

D)  (ii), (i), (iv), (iii)