Which of the Following Are Important Mechanisms for Na⁺ Reabsorption

question 3

Multiple Choice

Which of the following are important mechanisms for Na⁺ reabsorption?
I.Primary active transport
II.Chloride shift
III.Water retention
IV.Secondary active secretion of hydrogen and potassium ions.

• A) I, II, III
• B) I, IV
• C) I, II, III, IV
• D) II, III

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