Home
Class 12
BIOLOGY
[A] : In the descending limb of loop of...

[A] : In the descending limb of loop of Henle, the urine is hypertonic while in ascending limb, it is hypotonic.
[R]: Descending limb is impermeable to `Na^+` while ascending limb is impermeable to `H_2O`.

A

both are true and reason is correct explanation

B

both are true but reason is not correct explanation

C

assertion is true but reason is wrong

D

both are wrong

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Similar Questions

Explore conceptually related problems

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

Read the following statements and select the correct option Statement 1 : When the urine moves through the descending limb, it becomes hypertonic to blood plasma and as it passes through the ascending limb of Henl's loop it becomes hypotonic to blood plasma Statement 2 : The decending limb is permeable to sodium ions, while the ascending limb is impermeable to sodium ions

Assertion A: The renal fluid becomes increasingly concentrated when it flows down in the descending limb of loop of Henle towards the inner medulla but its concentration decreases in the ascending limb when it flows towards the cortex Reason R: The descending limb of the loop of Henle reabsorbs water, the ascending limb is impermeable to water but salts are reabsorbed

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

While ascending a mountain, a car go 8 kilometre consuming one litre of petrol and during the descending , it can go 12 kilometres consuming one litre of petrol. How many kilometers the car will go in a average per litre of petrol after ascending and then descending the mountain ?

Read the following statement and choose the correct option I. Asceding limb of Henle's loop is permeable to water II. Tubular cells secrete substance like H^(+), K^(+) and ammonia into filtrate III. There is maximum reabsorption in Henle's loop IV. Conditional reabsorption of Na^(+) occurs in DCT V. PCT helps in maintaining ionic balance of body fluids

If x in R ,a n da ,b ,c are in ascending or descending order of magnitude, show that (x-a)(x-c)//(x-b)(w h e r ex!=b) can assume any real value.