Multiple choice

Which of the following is normally not present in the urine?

  1. Protein

  2. Urea

  3. Creatinine

  4. Na+ and K+
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The glomerulus lining is such that it only allows small molecules to filter through, like glucose, plasma, ions like sodium and potassium, urea, etc. The larger molecules, like blood cells and protein, cannot pass through the glomerulus. Thus protein is not present in urine.

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