NO can only function as a paracrine regulator because____.
A) it is hydrophilic and cannot travel free in the blood
B) it is hydrophobic and cannot travel free in the blood
C) it is rapidly converted into nitrates and nitrites
D) its receptors are rapidly turned over
E) its receptors are immediately internalized when the ligand binds

Question

Quizplus · Accepted Answer

NO (Nitric Oxide) acts as a paracrine regulator primarily because it is rapidly converted into nitrates and nitrites, which limits its ability to act over long distances, making it effective only in the vicinity of its production site.

NO Can Only Function as a Paracrine Regulator Because____