Question

Angiotensinogen is a protein produced and secreted by

(a) macula densa cells

(b) endothelial cells (cells lining the blood vessels)

(c) liver cells

(d) Juxtaglomerular (JG) cells

Answer 1

Correct Option (c) liver cells

Explanation:

Angiotensinogen is a plasma protein produced and secreted by the liver cells. Renin is secreted from juxtaglomerular cells and acts enzymatically on angiotensinogen to release 10 amino acid contaning peptide angiotensin-1. Macula densa is actually a plaque in wall at the end of thick assending limb of nephrons.