Multiple choice

There is no sugar in urine. The blood entering the kidney has more sugar than leaving the kidney because

  1. sugar is used by kidney cells in metabolism

  2. sugar is absorbed by bladder

  3. sugar is absorbed by proximal convoluted tubule

  4. sugar is absorbed in loop of Henle
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A Correct answer
Explanation

 There is no sugar in urine. The blood entering the kidney has more sugar than leaving the kidney because sugar is absorbed by proximal convoluted tubule.

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