Question

Which of the following is true regarding the active site of an enzyme?

• A. The active site is formed by the foldings and crevices in the tertiary structure
• B. The substrate binds to the active site
• C. The enzyme catalyzes a reaction through its active site
• D. All the above

Answer 1

The correct option is D All the above

In the tertiary structure of the protein, the polypeptide chain folds upon itself and forms many crevices and pockets. Active site is one such crevice or pocket in which the substrate fits and binds to an enzyme. With the binding of substrate, the active site activates the enzyme and the enzyme catalyzes the reaction. Hence, all the given statements are true.