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Question 95

How can the kidneys help keep the body's water and ion balance relatively stable when conditions change?

  1. By changing what is reabsorbed or excretedCorrect answer
  2. By keeping urine composition permanently fixed
  3. By regulating only solid digestive waste
  4. By excreting all filtered water

Explanation

Kidneys adjust the amounts of water and ions recovered into blood or allowed to leave in urine. Their processing is therefore variable rather than fixed, and it does not require every filtered drop of water to be excreted.

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Question 95: How can the kidneys help keep the body's water and ion… · Human Body Systems · Questena