Enzymes are specific because

  1. they work at any temperature
  2. they are used up
  3. the active site is complementary in shape to one substrate
  4. they are made of protein
Answer

C) the active site is complementary in shape to one substrate

Specificity depends on shape (lock and key). O Level Biology · Topic 5 Enzymes · 5.1 Enzyme action

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