Which of the Choices Below Is the Least Important Role

question 107

Multiple Choice

Which of the choices below is the least important role of tubular secretion?

• A) disposing of substances not already in the filtrate, such as certain drugs
• B) ridding the body of excessive potassium ions
• C) eliminating undesirable substances such as urea and uric acid that have been reabsorbed by passive processes
• D) ridding the body of bicarbonate ions

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