Which one of the following body functions is not performed by kidneys?

Match the following columns:

Column-$I$	Column-$II$
$a.$ Loop of Henle	$1.$ Carries blood to the kidney
$b.$ Renal artery	$2.$ Region where maximum reabsorption occurs
$c.$ Proximal Convoluted Tubule $(PCT)$	$3.$ Main site of secretion
$d.$ Glomerulus	$4.$ Filtration of blood
$e.$ Distal Convoluted Tubule $(DCT)$	$5.$ Plays a significant role in urine concentration

The correct sequence is:

The average $pH$ of human urine is

An adult human excretes,on average,... liters of urine per day. On an average,... of urea is excreted out per day.

The blood leaving the kidney is significantly lower in:

Match the following:
$A$. Loop of Henle: $1$. Carries blood into the kidney
$B$. Renal artery: $2$. Area where a considerable amount of reabsorption takes place
$C$. Proximal convoluted tubule: $3$. Main area of secretion
$D$. Glomerulus: $4$. Filtration of blood
$E$. Distal convoluted tubule: $5$. Plays a role in concentration of urine
The correct pairing sequence is: