Refer to the Figure Below, Showing the Enzyme CAMP-Dependent Phosphodiesterase

question 45

Multiple Choice

Refer to the figure below, showing the enzyme cAMP-dependent phosphodiesterase converting cAMP to AMP.Chemical compounds that inhibit this enzyme are used as drugs to stimulate heart rate in patients with weak hearts. Which biological function does the nucleotide cAMP provide in this instance?

• A) Agent of energy transfer
• B) Signaling agent in muscle contraction
• C) Carrier in the metabolism of carbohydrates and lipids
• D) Energy storage molecule
• E) Regulator of glucose metabolism

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