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Question 890007
JEE Chemistry · Hard

Surface Chemistry: Catalysis MCQ

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CatalysisHardQuestion 890007

Question

Enzyme catalysis shows specificity because:
  1. A
    Active site of enzyme has complementary shape to substrate (lock-and-key or induced fit)
    Correct
  2. B
    Enzymes are proteins
  3. C
    pH has no effect on enzymes
  4. D
    Enzymes work at very high temperatures

Correct answer

Active site of enzyme has complementary shape to substrate (lock-and-key or induced fit)

Explanation

Enzyme specificity: the active site is complementary in shape and charge to the specific substrate molecule. Only the correct substrate can fit and react. This gives enzymes absolute (one substrate) or group (class of substrates) specificity.

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