500
Put the following steps of thyroxine synthesis in order:
I. Iodide is actively transported into thyroid follicle cells
II. Thyroglobulin (Tg) is synthesized in the thyroid follicle cell
III. Tyrosines within Tg are iodinated by thyroid peroxidase.
IV. Tg is exocytosed into the follicle lumen.
I. Iodide is actively transported into thyroid follicle cells
II. Thyroglobulin (Tg) is synthesized in the thyroid follicle cell.
III. Tyrosines within Tg are iodinated by thyroid peroxidase.
IV. Tg is exocytosed into the follicle lumen.