What happens to an enzyme when
the temperature or pH of its
environment changes?

Extreme high temperatures can cause an enzyme to lose its shape (denature) and stop working. the changing of the pH outside of the enzyme’s range will slow the activity of the enzyme. if it’s not extreme high or low temperatures, then raising the temperature, slightly, can speed up a reaction. Lowering the temperature, slightly, slows down a reaction

The answer to this question