Which of the following statements are INCORRE | vedclass

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(C) Statement $i$ is correct: Glomerular capillaries are formed by the branching of the afferent arteriole and have extremely thin walls to facilitate

Vedclass · Accepted Answer

$iii$ and $iv$

Vedclass · Answer

(C) Statement $i$ is correct: Glomerular capillaries are formed by the branching of the afferent arteriole and have extremely thin walls to facilitate filtration.Statement $ii$ is correct: The diameter of the afferent arteriole is wider than the efferent arteriole,which creates high hydrostatic pressure in the glomerulus.Statement $iii$ is incorrect: Glomerular filtrate is deproteinised plasma,but it is isotonic to blood plasma,not acidic.Statement $iv$ is incorrect: $PCT$ (Proximal Convoluted Tubule) cells reabsorb high threshold substances (like glucose and amino acids) actively. Low threshold substances like sulphates and nitrates are reabsorbed to a very limited extent and are generally not actively reabsorbed against a gradient in the $PCT$ in the same manner as high threshold substances.Therefore,statements $iii$ and $iv$ are incorrect.

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