A three-dimensional cavity bearing a specific charge by which the enzyme reacts with its substrate is called a/an:
Correct answer: A. Active site
- A. Active site
- B. Binding site
- C. Catalytic site
- D. Allosteric site
Explanation
The active site is the three-dimensional region of an enzyme where substrate molecules bind and undergo a chemical reaction. The active site consists of amino acid residues that form temporary bonds with the substrate (binding site) and residues that catalyze a reaction of that substrate (catalytic 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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