Oxidation of which of the following molecules in vascular endothelial cells produces the nitric oxide that is transported by hemoglobin?

Question

Quizplus · Accepted Answer

Nitric oxide (NO) is produced in vascular endothelial cells through the oxidation of arginine by nitric oxide synthase (NOS) enzymes. Hemoglobin does not transport NO, but it does bind to and transport nitric oxide gas (NO) in the form of nitric oxide bound to the heme iron of the hemoglobin molecule. The other listed molecules (cyclic AMP, acetylcholine, urea) are not involved in the production or transport of nitric oxide in vascular endothelial cells.

Oxidation of Which of the Following Molecules in Vascular Endothelial