Biology 9700 · AS & A Level · Mode of action of enzymes

Mode of action of enzymes — practice question

An enzyme has been altered for industrial use. Compared with the unmodified enzyme, it has a lower Michaelis-Menten constant ($K_m$). What is true about the modified enzyme?

  • AIt is more specific.
  • BIt has a higher affinity for its substrate.
  • CIt has a lower maximum rate of reaction ($V_{max}$).
  • DIt needs more substrate to become saturated.

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