An enzyme with a low Km has

  1. a low Vmax
  2. no active site
  3. a high affinity for its substrate
  4. a low affinity for its substrate
Answer

C) a high affinity for its substrate

It reaches half Vmax at a low substrate concentration. AS & A Level Biology · Topic 3 Enzymes · 3.2 Factors that affect enzyme action

Biology MCQ · More A Level Biology: Enzymes MCQs · Practise