This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'Angiotensinogen is secreted by ? \nSelect and explain. \nA. Kidney, B. Lung, C. Liver, D. Brain', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Liver Angiotensinogen (a, - globulin) is produced in liver and is conveed to angiotensin I (A-I) with the help of renin which is secreted by juxtaglonierular cells of afferent aerioles of kidney and lacis cells (located in the junction between the afferent and efferent aerioles). Angiotensin I is conveed to Angiotensin II (A-II) by angiotensin conveing enzyme (ACE). Which is located primarily on the luminal surface of vascular endothelial cells, especially in lungs.", 'role': 'assistant'}]