The specificity of an enzyme is due which of the following?
Correct answer: B. Active site
- A. Protein nature
- B. Active site
- C. Globular shape
- D. Co-factor
Explanation
The specificity of an enzyme is primarily due to the unique structure of its active site. The active site is a specific region on the enzyme's three-dimensional structure where the substrate (the molecule upon which the enzyme acts) binds during a catalytic reaction. The specificity arises from both the shape and the chemical properties of the active site.
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About Enzymes
Enzymes are biological catalysts that lower activation energy without being consumed, and their specificity is explained by the lock and key and induced fit models. Work includes the effects of temperature, pH and substrate concentration on reaction rate, plus competitive and non-competitive inhibition and how these differ.
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