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Question 96

Which kidney action contributes to regulation of the body's acid-base balance?

  1. Storing air inside kidney tissue
  2. Preventing urine from affecting balance
  3. Adjusting excretion and reabsorption of pH-related substancesCorrect answer
  4. Using only bones to set body pH

Explanation

Kidneys influence acid-base balance by changing how pH-affecting substances are excreted or returned to blood. Storing air cannot regulate this chemical balance, and urine formation is one of the processes that can alter it.

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