The correct sequence of filtrate movement and change in its osmolarity as it passes…

Biology · NEET · NTA ExamsExcretory Products and their Elimination

The correct sequence of filtrate movement and change in its osmolarity as it passes through the loop of Henle is:

I. Filtrate becomes concentrated in the descending limb.
II. Filtrate enters the descending limb with an osmolarity similar to plasma (~300 mOsmol/L).
III. Filtrate gets diluted in the ascending limb.
IV. Filtrate moves into the ascending limb.
V. Electrolytes are actively transported out of the thick ascending limb into the interstitium.

Choose the correct answer from the options given below:

  1. II → I → IV → V → III
  2. I → II → IV → V → III
  3. II → IV → I → V → III
  4. IV → II → I → III → V

Answer

(A) II → I → IV → V → III

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