STANDARD Zoology Urine Concentration MCQ Question
The urine is
Hypotonic to blood and isotonic in medullary fluid
Hypertonic to blood and isotonic to medullary fluid
Isotonic to blood and hypotonic to medullary fluid
Isotonic to blood and hypertonic to medullary fluid
Correct Answer
Detailed Explanation
The process of urine concentration in mammals occurs due to the interaction of the loop of Henle and its nearby collecting tubule. To concentrate urine, aquaporins will allow water to flow from the collecting tubule to the nearby medulla.
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