n an experiment, a scientist notices that an enzyme’s catalytic rate decreases when the pH of the environment is changed. Which of the following best summarizes the effect of pH on the enzyme?
pH changes the atomic structure of the enzyme.
pH changes the ability of the enzyme to dissolve in water.
pH changes the shape of the enzyme.
pH takes energy away from the enzyme, thus slowing it down.
I think the correct answer from the choices listed above is the third option. The effect of pH on the enzyme would be that it changes the shape of the enzyme. A change in pH can change the shape of an enzyme by neutralizing negative charges by addition of H , or by causing negative charges by dissociation of H+.
