Figure 1 Shows a Protein Enzyme Labeled E That Catalyzes

Figure 1 shows a protein enzyme labeled E that catalyzes a chemical reaction involving the substrate molecule labeled C.Figure 2 shows how another molecule, labeled D, binds to a site on the protein that is distinct from the catalytic site. Based on the activities shown, what biological advantage does this protein gain by having the ability to bind molecule D?

A) It gains a new chemical reaction that it can catalyze.
B) It gains the ability to bind a broader range of molecules at its catalytic site.
C) It gains a mechanism for preventing the protein from being degraded.
D) It gains a means for turning the biological activity of the protein on and off.
E) It gains the ability to diffuse through cell membranes.

Correct Answer:

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