Ornithine is converted into citrulline by which enzyme?

What will be the $EFP$,if $BCOP$ is $-30 \, mm \, Hg$,$CHP$ is $-20 \, mm \, Hg$ and $GHP$ is $+70 \, mm \, Hg$?

The ultrafiltrate generated by the glomerulus contains all the constituents of blood plasma except:

Provide the full forms of the following abbreviations:
$(1)$ $GFR$
$(2)$ $mosmol/L$

Identify the sequential processes involved in urine formation.

Which of the following statements are $INCORRECT$?
$i$. Glomerular capillaries are extremely thin-walled.
$ii$. Diameter of afferent arteriole is greater than that of efferent arteriole.
$iii$. Glomerular filtrate is deproteinised plasma and is acidic in nature.
$iv$. $PCT$ cells reabsorb low threshold substances like sulphates,nitrates actively against concentration gradient.
Select the correct option from given.