Multiple Choice
Which of the following events occurs last?
A) IP3 (inositol triphosphate) is produced.
B) Epinephrine combines with membrane-bound receptor on smooth muscle cell.
C) Calmodulin binds to the enzyme that phosphorylates myosin and cross-bridges form.
D) IP3 stimulates Ca2+ release from the endoplasmic reticulum.
E) Ca2+ binds with calmodulin.
Correct Answer:

Verified
Correct Answer:
Verified
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