Which molecular structure of enzyme is essential for activity of enzyme?
Correct answer: D. Tertiary structure
- A. Primary structure
- B. Secondary structure
- C. Quaternary structure
- D. Tertiary structure
Explanation
The tertiary structure of an enzyme refers to the three-dimensional arrangement of its polypeptide chain, including the interactions between different regions of the chain. The tertiary structure is crucial for the enzyme's catalytic activity because it determines the specific folding and positioning of the enzyme's active site. The active site is a region of the enzyme where the substrate binds and the chemical reaction takes place. The unique three-dimensional arrangement of amino acid residues in the active site allows the enzyme to interact specifically with its substrate and catalyze the reaction with high efficiency.
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