(A) Temperature changes do not affect enzymes
(B) Every enzyme controls many different reactions
(C) Enzymes are produced tom the building blocks of carbohydrates
(D) The rate of activity of an enzyme might change as pH changes
I think the correct answer from the choices listed above is option B. Every enzyme controls many different reactions. Enzymes are used to speed up chemical reactions especially those that proceed slowly. They are biocatalysts. Hope this answers the questions.
