Select the CORRECT statements:i. Tubular secr | vedclass

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(C) Statement $i$ is incorrect because tubular secretion of $H^{+}$ ions occurs primarily in the $DCT$ and $CT$,not the $PCT$.Statement $ii$ is correc

Vedclass · Accepted Answer

$ii$ and $iii$ only

Vedclass · Answer

(C) Statement $i$ is incorrect because tubular secretion of $H^{+}$ ions occurs primarily in the $DCT$ and $CT$,not the $PCT$.Statement $ii$ is correct; tubular secretion (often referred to as augmentation) involves the active secretion of $H^{+}$,$K^{+}$,and ammonia into the filtrate in the $DCT$ and $CT$.Statement $iii$ is correct; by secreting $H^{+}$ ions,the kidneys maintain the acid-base balance and regulate the $pH$ of the blood.Statement $iv$ is incorrect because the glomerular filtrate is typically isotonic and neutral to slightly alkaline,whereas only urine is acidic.Therefore,statements $ii$ and $iii$ are correct.

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

Similar Questions

Out of the following:
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$IV.$ Collecting duct
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