You have discovered an enzyme that can catalyze two different chemical reactions. Which of the following is most likely to be correct?

Question

Quizplus · Accepted Answer

For an enzyme to catalyze two different chemical reactions, it must have two distinct active sites or the reactants involved in the two reactions must be very similar in size and shape, allowing them to bind to the same active site. Option A would imply that the enzyme is regulated by two different molecules, whereas Option B suggests that the enzyme is composed of subunits, neither of which is necessary for an enzyme to catalyze two different reactions. Option D is irrelevant since the secondary structure of the enzyme is not directly related to its catalytic activity. Option E is possible for any enzyme, regardless of its ability to catalyze multiple reactions.

You Have Discovered an Enzyme That Can Catalyze Two Different