Biology · Homeostasis
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Active uptake of______ in the ascending limb or thick loop of Henle is promoted by the action of aldosterone:
- A
K+
- B
Cl-
- C
Ca++
- D
Na+
Option D is correct.
The active uptake of sodium (Na+) in the ascending limb or thick loop of Henle is promoted by the action of aldosterone. Aldosterone is a hormone produced by the adrenal glands that acts on the distal tubules and collecting ducts of the nephron to enhance sodium reabsorption. By increasing sodium reabsorption, aldosterone helps regulate sodium and water balance in the body and plays a role in blood pressure regulation.
Aldosterone has no direct effect on the active uptake of K+ in the ascending limb of Henle. However, it can indirectly affect K+ uptake by increasing the reabsorption of Na+.
Aldosterone indirectly promotes the uptake of Cl- in the ascending limb of Henle by increasing the reabsorption of Na+.
Aldosterone has no significant effect on the active uptake of Ca++ in the ascending limb of Henle.
The active uptake of sodium (Na+) in the ascending limb or thick loop of Henle is promoted by the action of aldosterone. Aldosterone is a hormone produced by the adrenal glands that acts on the distal tubules and collecting ducts of the nephron to enhance sodium reabsorption. By increasing sodium reabsorption, aldosterone helps regulate sodium and water balance in the body and plays a role in blood pressure regulation.
Tagged under Biology · Homeostasis · 2013