The Local Mediator Nitric Oxide Stimulates the Intracellular Enzyme Guanylyl

Question

The local mediator nitric oxide stimulates the intracellular enzyme guanylyl cyclase by
A)activating a G protein.
B)activating a receptor tyrosine kinase.
C)diffusing into cells and stimulating the cyclase directly.
D)activating an intracellular protein kinase.

Accepted Answer

Nitric oxide diffuses into cells and stimulates the intracellular enzyme guanylyl cyclase directly. The other options (activating a G protein, activating a receptor tyrosine kinase, and activating an intracellular protein kinase) are not involved in the signaling pathway of nitric oxide.