[Solved] Regarding the kidney and urine formation:

Q.	Regarding the kidney and urine formation:
A.	specific gravity is measure of osmolality
B.	thin ascending limb relatively impermeable to water
C.	thin ascending limb relatively impermeable to Na+ Cl-
D.	water diuresis begins about 1 hour after ingestion of a water load
E.	high protein diet does not affect concentrating ability of kidney
Answer» B. thin ascending limb relatively impermeable to water

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