Which of These Descriptions Applies to the Iodide Pump

question 139

Multiple Choice

Which of these descriptions applies to the iodide pump

• A)a mechanism whereby target cells extract iodine-containing thyroid hormone from the blood
• B)an active transport mechanism that concentrates iodine in the thyroid
• C)a mechanism whereby T₃ and T₄ are released from thyroglobulin and pumped into the circulation
• D)a protein-binding process whereby T₃ and T₄ are pumped throughout the body bound to plasma proteins

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