1. Tardigrade
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  3. Biology
  4. Kidney helps in the conservation of useful materials and excretion of wastes and therefore they receive 20% of the heart’s output of blood (as much as the heart and brain combined). On a percentage basis which substance is most completely reabsorbed by the kidneys?

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Q. Kidney helps in the conservation of useful materials and excretion of wastes and therefore they receive 20% of the heart’s output of blood (as much as the heart and brain combined). On a percentage basis which substance is most completely reabsorbed by the kidneys?

Excretory Products and their Elimination

Solution:

Glucose is 100% reabsorbed and thus a healthy person will excrete no glucose in the urine. Sodium and water are usually over 99% reabsorbed. Urea is the main excretory product formed as a result of protein breakdown.