Biology 9700 · AS & A Level · Factors that affect enzyme action

Factors that affect enzyme action — practice question

The graph shows how temperature affects the activity of the protease enzyme papain, both in solution (free) and when immobilised in alginate beads. Which statement correctly describes the effect of immobilising papain?

  • AIt alters the shape of papain’s active site at higher temperatures.
  • BIt decreases the activity of papain at higher temperatures.
  • CIt increases the stability of papain at higher temperatures.
  • DIt reduces the number of collisions of papain with the substrate.

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