This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidneys and Body Fluids, Subject name: Physiology
Which of the following hormone is not secreted by kidney: 
Select and explain. 
A. 1,25 dihydroxycholecalciferol, B. Angiotensin I, C. Renin, D. Erythropoietin
B: Angiotensin I
Answer: B: Angiotensin I 
Explanation: Ans. B. Angiotensin IThe kidney produces three hormones:a. 1,25 dihydroxycholecalciferolb. Reninc. erythropoietinAngiotensinogen is found in the D2 globulin fraction of the plasma. It is synthesized in the liver and is converted to angiotensin I by renin which is further converted to angiotensin II by the action of ACE in lungs.