Which part of nephron in human kidney is associated with active transport of Na+?

Bowman's capsule

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Convoluted part

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Collecting tubule

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Neck

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Solution

The correct option is B Convoluted part
The proximal tubule which is the portion of the duct system of the nephron of the kidney leads from Bowman's capsule to the loop of Henle. The proximal tubule regulates the pH of the filtrate by exchanging hydrogen ions in the interstitium for bicarbonate ions in the filtrate. It also secretes organic acids, such as creatinine and other bases, into the filtrate. Fluid in the filtrate entering the proximal convoluted tubule is reabsorbed into the peritubular capillaries. This is driven by sodium transport from the lumen into the blood by the Na+/K+ ATPase in the basolateral membrane of the epithelial cells. Sodium reabsorption is primarily driven by this P-type ATPase. This is the most important transport mechanism in the PCT. Thus, option B is correct and other options are wrong.

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Similar questions

Q. Which is the part of the nephron that exists in outer zone of kidney?

Give advantage of having highly coiled structure in human kidney. Mention any two substances which are selectively reabsorbed as filtrate flows along the tubular part of nephron.

Q. The Bowman's capsule, a part of the kidney is the site of

{Na}^{+}

and

{Cl}^{-}

transported out of the tubules to help set up the countercurrent multiplier. Which of the following are sites of active

{Na}^{+}

and

{Cl}^{-}

transport in the nephron?

Q. Name the following:
(a) The organ which produces urea.
(b) The outer part of the kidney containing the Bowman's capsule.
(c) The tuft of capillaries inside the Bowman's capsule.
(d) The part of kidney tubules where the term urine is first used for the fluid in it.
(e) The vein in which urea concentration is maximum.

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