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The area of rnephron is most affected by the hormone Aldosterone that facilitates reabsorption of water?

1) True
2) False

1 Answer

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Final answer:

The statement is false; Aldosterone facilitates the reabsorption of sodium in the distal tubules, which indirectly causes water reabsorption. The hormone directly responsible for increasing water reabsorption in the kidneys is antidiuretic hormone (ADH), which acts on the collecting ducts.

Step-by-step explanation:

The statement that the area of the nephron most affected by the hormone Aldosterone that facilitates reabsorption of water is false. Aldosterone primarily increases the reabsorption of sodium in the distal tubules of the nephrons, and as a result, water passively follows this reabsorbed sodium back into the blood due to osmotic gradients.

The hormone directly responsible for increasing water reabsorption in the kidneys is the antidiuretic hormone (ADH), which acts on the collecting ducts of the nephron. ADH makes the collecting ducts more permeable to water, allowing more water to be reabsorbed back into the bloodstream. This tightly controls the amount of water reabsorbed by the kidneys, ensuring proper hydration and electrolyte balance.

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