Choose the incorrect sentence.

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(D) The correct answer is $D$. $1$. The descending limb of the loop of Henle is permeable to water but nearly impermeable to electrolytes,which helps

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Ascending limb of Henle's loop is impermeable to electrolytes.

Vedclass · Answer

(D) The correct answer is $D$. $1$. The descending limb of the loop of Henle is permeable to water but nearly impermeable to electrolytes,which helps in the concentration of filtrate. $2$. The distal convoluted tubule $(DCT)$ is capable of reabsorption of $HCO_3^-$ and selective secretion of hydrogen ions $(H^+)$,potassium ions $(K^+)$,and ammonia $(NH_3)$ to maintain the $pH$ and sodium-potassium balance in the blood. $3$. The collecting duct allows for the passage of small amounts of urea into the medullary interstitium to keep up the osmolarity and also secretes $H^+$ and $K^+$ ions. $4$. The ascending limb of the loop of Henle is impermeable to water but allows the transport of electrolytes (like $Na^+$,$Cl^-$,and $K^+$) actively or passively. Therefore,the statement that it is impermeable to electrolytes is incorrect.

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