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If the Binding of Muscarine to Its Receptor in the Heart

Question 67

Multiple Choice

If the binding of muscarine to its receptor in the heart causes the beta-gamma complex of the G-protein to bind to a K+ channel,


A) the K+ channel will close,leading to depolarization.
B) the K+ channel will open,leading to depolarization.
C) the K+ channel will close,leading to hyperpolarization and inhibition.
D) the K+ channel will open,leading to hyperpolarization and inhibition.

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