Thyroxine is transpoed by?: (A) Albumin, (B) Transthyretin, (C) Transferrin, (D) Ceruloplasmin
Answer is A. Transpo proteins for thyroxine: - 1. TBG - Thyroid binding globulin high affinity, low capacity. 2. TBPA - Thyroid binding prealbumin. 3. Albumin - Low affinity, high capacity. 4. Transthyretin - Very small quantity for thyroxine transpo. Transferrin - Fe2+ transpo Ceruloplasmin - Cu2+ transpo.