NEET Biology question
Read the given statements and select the correct option. Statement 1: Small amount of urea enters the thick segment of Henle's loop which is transported back to interstitium by collecting tubules. Statement 2: Collecting tubules and thick segment of Henle's loop are permeable to urea.
Answer: (D)
Solution
In reality, it is the deeper part of the THIN ascending limb of Henle's loop (not the thick segment) that is permeable to urea, and urea actually diffuses OUT of the collecting duct INTO this thin ascending limb (the reverse of what statement 1
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