NEET Zoology Urine Formation MCQ Question
If the initial filtrate formed in the human kidneys has an osmolarity of 300 mOsmol/L, what would be the osmolarity of the urine if it is concentrated four times compared to the initial filtrate?
1200 mOsmol/L
600 mOsmol/L
900 mOsmol/L
1500 mOsmol/L
Correct Answer
Detailed Explanation
The NCERT context states that human kidneys can produce urine nearly four times concentrated than the initial filtrate. Therefore, if the initial filtrate has an osmolarity of 300 mOsmol/L, the urine osmolarity would be 300 x 4 = 1200 mOsmol/L.
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