Nitric Oxide (NO) Participates in a Signal Transduction Pathway That

Multiple Choice

Nitric oxide (NO) participates in a signal transduction pathway that promotes relaxation of smooth muscle cells lining blood vessels and so increases blood flow.Nitric oxide accomplishes this by

A) binding to receptors on the muscle cells.
B) causing an increase in intracellular Ca²⁺.
C) activating acetylcholine receptors.
D) activating phosphodiesterase in the muscle cells.
E) diffusing into the muscle cell and increasing cGMP.