How does a pH much higher than the optimum affect an enzyme?

  1. It increases the reaction rate.
  2. It denatures the enzyme by changing its active site shape.
  3. It provides more activation energy.
  4. It has no effect on the enzyme structure.

📝 Detailed explanation

Extreme pH levels disrupt the ionic bonds maintaining the protein's 3D structure, causing the active site to lose its shape (denaturation).
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