Which of the following is a short-lived messenger that acts by stimulating a soluble guanylyl cyclase, raising [cGMP] and stimulating PKG?

Which of the following is a short-lived messenger that acts by stimula

1.	Which of the following is a short-lived messenger that acts by stimulating a soluble guanylyl cyclase, raising [cGMP] and stimulating PKG?
A.	NO
B.	NO<sub>2</sub>
C.	NO<sub>3</sub><sup> </sup>
D.	N<sub>2</sub>O
Answer» B. NO<sub>2</sub>