Question

Arrange the steps of catalytic action of an enzyme in order and select the correct option.
I. The enzyme release 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 subtrate.
III. The binding of sustrate induces the enzyme to alter its shape fitting more tightly around the sustrate.
IV.The substrate binds to the active site of the enzyme.

• A. IV, III, II, I
• B. III, II, I, IV
• C. IV, II, I, III
• D. II, I, IV, III

Answer 1

The correct option is A IV, III, II, I

Four Steps of Enzyme Action:

1) The enzyme and the substrate are in the same area. Some situations have more than one substrate molecule that the enzyme will change.

2) The enzyme grabs on to the substrate at a special area called the active site. A process called catalysis.

3) The binding of substrate induces the enzymes to alter its shape to fit around the substrate.

4) The enzyme breaks the chemical bonds of the substrate and releases the product of the reaction and the enzyme is free to bind to another substrate.

So, the correct option is 'IV, III, II, I'.