Neet Solved Paper 2015 Question 68
Question: Which of the following does not favour the formation of large quantities of dilute urine?
Options:
A) Alcohol
B) Caffeine
C) Renin
D) Atrial-natriuretic factor
Show Answer
Answer:
Correct Answer: C
Solution:
- Renin secreted by JGA regulates the glomerular filtration rate by inducing multihormonal system i.e RAAS (Renin Angiotensin-Aldosterone System). Activation of this system increases the reabsorption rate of sodium $ (N{a^{+}}) $ and water, making the urine more concentrated. Alcohol decreases vasopressin level which lowers reabsorption of water thus making urine more dilute. ANF causes vasodilation and acts as check on RAAS.
