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Assertion : In the descending limb of lo...

Assertion : In the descending limb of loop of Henle , the urine is hypertonic , while in ascending limb of loop of Henle , the urine is Hypotonic .
Reason : Descending limb is impermeable to Na' while ascending limb is impermeable to `H_(2)O`

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

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The correct Answer is:
A
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Statement-1 : In the descending limb of loop of Henle, the urine is hypertonic, which in ascending limb of loop of Henle, the urine is hypotonic. Statement-2 : Descending limb is impermeable to sodium, while ascending limb is impermeable to water.

Ascending limb of Henle’s loop is ____________to water whereas the descending limb is___________to it.

The nephron is a hollow, convoluted tube of cells. It is engineered to concentrate urine by removing water at which of the following sites? I. Proximal convoluted tubule II. Descending limb of the loop of Henle III. Ascending limb of the loop of Henle

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A body is projected vertically upwards . The times corresponding to height h while ascending and while descending are t_(1)andt_(2) respectively . Then the velocity of projection is (g is acceleration due to gravity)

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