Q. Regarding the renin-angiotensin system, which is CORRECT? (Solved)
1. renin has many functions including the formation of angiotensin I from angiotensinogen
2. after nephrectomy, circulating levels of prorenin fall
3. renin is formed in the juxtaglomerular cells of the kidney
4. active renin has a half-life in the circulation of 40 minutes or less
5. prorenin is biologically active
- c. renin is formed in the juxtaglomerular cells of the kidney