Question: Explain in an easy way and function lon (ex. Sodium, Na+) reabsorption by the proximal convoluted tubule Blood flow -65% of Na* Peritubular reabsorbed into

Explain in an easy way and function

Explain in an easy way and function lon (ex.
lon (ex. Sodium, Na+) reabsorption by the proximal convoluted tubule Blood flow -65% of Na* Peritubular reabsorbed into capillary the blood Na Primary active transport ATPase pump is located only on the basolateral Interstitial High Na Low Ko fluid membrane... creates a low (2) Na* is moved up its Basolateral Na* /K pump concentration gradient intracellular [Na]. membrane by active transport. Note: kidneys burn a lot of ATP w/ Low Nat High K' ion pumps. Tubule cell Nat transport across luminal 1 Nat diffuses down its concentration gradient or apical membrane is Luminal Nat transport by facilitated diffusion. membrane protein passive (facilitated diffusion) High Na* -35% of Na* remains Tubular fluid in tubular fluid (b) Lumen of proximal convoluted tubule (PCT)

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