The primary form of cortisol in the plasma is that which is:
Ans. D. Bound to corticosteroid-binding globulin (CBG)Cortisol, like other steroid hormones, is carried in the blood largely bound to carrier proteins, although a small percentage exists free in solution. The majority of cortisol is bound to a specific carrier protein, corticosteroid-binding globulin (CBG), while smaller amounts are bound nonspecifically to albumin. Few, if any, cortisol receptors would be expected in the plasma and transthyretin binds primarily thyroxine.
Bound to albumin
Bound to transthyretin
Free in solution
Bound to corticosteroid-binding globulin (CBG)
Misc.