Given below are two statements: one is labelled Assertion(A) and other is labelled Reason(R).
Assertion (A): The reabsorption of water from PCT and descending limb of loop of Henle is obligatory reabsorption.
Reason (R): The reabsorption of water from PCT and loop of Henle is strictly under the control of hormones.
In the light of above statements, choose the correct answer from the options given below.

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Both A and R are false.

Both A and R are true but R does not explains A.

Both A and R are true and R explains A.

A is true but R is false.

answer is C.

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Detailed Solution

The reabsorption of water from PCT and descending limb of loop of Henle is obligatory reabsorption and it is not under the control of hormones. Hormones like ADH and aldosterone regulate the reabsorption of water and electrolytes in the distal tubules of the nephron (DCT and collecting duct).

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