Which of the following statements is correct?

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(A) The loop of Henle plays a crucial role in the concentration of urine.$1$. The descending limb of the loop of Henle is permeable to water but almos

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The ascending limb of the loop of Henle is impermeable to water.

Vedclass · Answer

(A) The loop of Henle plays a crucial role in the concentration of urine.$1$. The descending limb of the loop of Henle is permeable to water but almost impermeable to electrolytes. This allows water to move out of the filtrate into the interstitial fluid,concentrating the urine.$2$. The ascending limb of the loop of Henle is impermeable to water but allows the transport of electrolytes (like $Na^+$,$Cl^-$) either passively or actively. This helps in diluting the filtrate.Therefore,the statement that the ascending limb of the loop of Henle is impermeable to water is correct.

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