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NEET UG BIOLOGY MCQ: EXCRETORY PRODUCTS AND THEIR ELIMINATION
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Counter current mechanism helps to maintain a concentration gradient. This gradient help in
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Correct option: B
Easy passage of water from collecting tubule to interstitial fluid and thereby concentrating urine
Option B (Easy passage of water from collecting tubule to interstitial fluid and thereby concentrating urine) is correct because the concentration gradient created by the counter-current mechanism allows water to move out of the collecting tubule into the hypertonic medullary interstitium, concentrating the urine.
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