Which statement about enzymes is essential to the lock & key hypothesis?
Correct answer: A. Enzyme molecules each have a distinct shape
- A. Enzyme molecules each have a distinct shape
- B. Enzyme molecules are catalysts
- C. Enzyme molecules can be damaged by high temperature
- D. Enzyme molecules can be damaged by high pH value
Explanation
Enzyme molecules each have a distinct shape - Correct. The lock and key hypothesis states that enzymes have specific active sites complementary to their substrates.
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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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