Enzymes: Classification, Kinetics and Inhibition · Zoology

A low Km value indicates:

  1. Low affinity for substrate
  2. High affinity for substrate
  3. Low enzyme concentration
  4. High maximum velocity
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Correct answer: High affinity for substrate

A low Km value means the enzyme reaches half-maximal velocity at low substrate concentrations, indicating high affinity for its substrate. Conversely, a high Km reflects weaker enzyme-substrate affinity.

Difficulty: Medium Question 8 of 20

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