Enzyme substrate specificity is a result of which property of enzymes?
Correct answer: C. Tertiary structure of enzymes
- A. The primary structure of enzymes
- B. The secondary structure of enzymes
- C. Tertiary structure of enzymes
- D. Quarternary structure of enzymes
Explanation
Tertiary structure of enzymes. Enzyme-substrate specificity arises from the unique three-dimensional shape of the enzyme's active site, which is determined by the enzyme's tertiary structure. The active site is a pocket or cavity on the surface of the enzyme that is specifically shaped to bind the substrate. The shape of the active site is complementary to the shape of the substrate, allowing them to fit together like a lock and key.
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About Characteristics of Enzymes
Enzymes are globular biological catalysts that lower activation energy without being consumed, usually showing specificity for particular substrates. Questions cover active sites, enzyme substrate complexes, the lock and key and induced fit models, intracellular and extracellular action, and the effects of denaturation, while distinguishing enzymes from non biological catalysts.
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