Which of the Following Transport Mechanisms Is Passive

question 90

Multiple Choice

Which of the following transport mechanisms is passive?

• A) transport of sodium and potassium across the membrane by the Na⁺/ K⁺ pump
• B) cotransport of glucose with sodium
• C) countertransport of hydrogen ions with sodium
• D) movement of sodium through ion channels
• E) movement of calcium out of the cytosol

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