Assertion :While going down the loop of Henle, the filtrate becomes hypotonic. Reason: The descending limb of loop of Henle is impermeable to both water and electrolytes.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Both Assertion and Reason are incorrect.

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Solution

The correct option is D Both Assertion and Reason are incorrect.
The descending limb of the loop of Henle is permeable to water but almost impermeable to electrolytes. This concentrates the filtrate as it moves down the loop and becomes hypertonic.
Thus, the correct answer is option D.

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Assertion :While going down the loop of Henle, the filtrate becomes hypotonic. Reason: The descending limb of loop of Henle is impermeable to both water and electrolytes.

The correct option is D Both Assertion and Reason are incorrect.The descending limb of the loop of Henle is permeable to water but almost impermeable to electrolytes. This concentrates the filtrate as it moves down the loop and becomes hypertonic. Thus, the correct answer is option D.

The correct option is D Both Assertion and Reason are incorrect.
The descending limb of the loop of Henle is permeable to water but almost impermeable to electrolytes. This concentrates the filtrate as it moves down the loop and becomes hypertonic.
Thus, the correct answer is option D.