What is the approximate $GFR$ in a healthy individual?

In a healthy individual, the Glomerular Filtration Rate $(GFR)$ is . . . . . . .

Ultrafiltration takes place in

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.

Choose the correct order of urine formation in human.

Glomerular filtrate is