Since T3 and T4 are protein hormones and are therefore hydro

Since T_3 and T_4 are protein hormones and are therefore hydrophilic, very little of it is bound to a transport the blood stream True False

Solution

True

Explanation:

Maximum thyroid hormones are circulating in the blood which bound to transport proteins.only a small number of thyroid hormones are unbound in nature.

That\'s why measuring thyroid hormones in blood is misleading here t3 which is unbound 0.3% and t4 which also unbound 0.03%.despite they cross the cell membrane via carrier mediated transport