How is the Concentration of a Hormone in Plasma Determined

Question

How is the concentration of a hormone in plasma determined?
A)Only by its rate of secretion
B)By the number of its target cells in the body
C)Only by its rate of synthesis
D)By its secretion and clearance rates,and whether or not it binds to carriers and/or other plasma proteins
E)Only by the rate of its degradation by the liver and kidneys

Accepted Answer

The concentration of a hormone in plasma is determined by various factors including its secretion and clearance rates, as well as whether it binds to carriers or other plasma proteins. The rate of synthesis and degradation by the liver and kidneys can also affect the hormone concentration in plasma. The number of target cells in the body does not necessarily determine the hormone concentration in plasma. Therefore, option D is the best choice.