Which of the following parts of the nephron i | vedclass

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(D) The nephron consists of various segments with different permeability properties.$1$. The $PCT$ (Proximal Convoluted Tubule) is highly permeable to

Vedclass · Accepted Answer

Ascending limb of Loop of Henle

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(D) The nephron consists of various segments with different permeability properties.$1$. The $PCT$ (Proximal Convoluted Tubule) is highly permeable to water and electrolytes.$2$. The descending limb of the Loop of Henle is permeable to water but almost impermeable to electrolytes.$3$. The ascending limb of the Loop of Henle is impermeable to water but allows the transport of electrolytes (like $Na^+$,$K^+$,$Cl^-$).$4$. Therefore,the ascending limb is the part that is generally impermeable to water.

Column-$I$	Column-$II$
$a. PCT$	$i. \text{Selective secretion of } H^+ \text{ and } K^+ \text{ ions}$
$b. DCT$	$ii. 70-80\% \text{ of electrolytes and water reabsorption}$
$c. \text{Descending limb}$	$iii. \text{Allows passage of small amounts of urea}$
$d. \text{Ascending limb}$	$iv. \text{Permeable to water}$
$e. \text{Collecting duct}$	$v. \text{Permeable to salts}$

Which of the following parts of the nephron is generally impermeable to water?

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