Which of the following events occurs last? A) Enzymes break down thyroglobulin to release T₃ and T₄. B) T₃ and T₄ are stored within thyroid follicles. C) Iodide is bound to tyrosine molecules of thyroglobulin. D) Thyroglobulin is taken into thyroid cells by endocytosis. E) Iodide is actively transported into thyroid follicle cells.

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The last event in the synthesis and release of thyroid hormones (indicated by T₃ and T₄, which stand for T3 and T4 respectively) is the breakdown of thyroglobulin to release these hormones into the bloodstream. This occurs after thyroglobulin, with bound iodine, is taken back into the thyroid cells and then cleaved.

Which of the Following Events Occurs Last