Which of the Following Statements Concerning the Effect of PH

Multiple Choice

Which of the following statements concerning the effect of pH on enzyme activity is FALSE?

A) Enzyme shape changes as the pH changes.
B) The pH affects positively-charged amino acids.
C) The pH affects negatively-charged amino acids.
D) The binding capacity of an enzyme is affected by pH.
E) Enzymes are always present at their pH optimum.