Academic session 2026-27, Chapter 16 in the current curriculum.
Welcome to the NCERT Solutions for Class 11 Biology - Chapter Excretory products and their Elimination. This page offers a step-by-step solution to the specific question from Exercise 0, Question 1:
Explain the mechanism of formation of concentrated urine in mammals.
Explain the mechanism of formation of concentrated urine in mammals.
The Henle’s loop and vasa recta play a significant role in the formation of concentrated urine. The flow of filtrate in two limbs, i.e. ascending limb and descending limb of Henle’s loop is in opposite directions and thus forms a counter current. The flow of blood in the two limbs of vasa recta is also in counter current pattern. This mechanism of counter current helps to maintain concentration gradient in the medullary interstitium. Presence of such interstitial gradient help in an easy passage of water from collecting tubule thereby concentrating the filtrate. Human kidney can produce urine nearly 4 times concentrated than the initial filtrate which is initially formed.
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Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 0 , Question 1: Explain the mechanism of formation of concentrated urine in mammals. ....
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