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

Factors that affect enzyme action — practice question

In an investigation into the rate of reaction of the enzyme lipase during the hydrolysis of triglycerides, pH has to be kept at an optimum so that the lipase does not denature. What is the reason for this?

  • AThe addition of water molecules produced by hydrolysis increases the pH.
  • BThe products of hydrolysis decrease the pH.
  • CThe products of hydrolysis increase the pH.
  • DThe removal of water molecules used in hydrolysis decreases the pH.

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