The specificity of hormones is due to
A)specialized hormone secretion
B)molecular rearrangement at the site of action
C)specific binding of hormones to plasma proteins
D)specialization of target-cell receptors
E)inactivation of hormones by the kidneys

Question

Quizplus · Accepted Answer

The specificity of hormones is due to the specialization of target-cell receptors. Each hormone binds to a specific receptor on the target cell, and only cells that have the appropriate receptor can respond to that hormone. This mechanism ensures that the right hormone reaches the right target cell and produces the desired response. Specialized hormone secretion, molecular rearrangement at the site of action, and inactivation of hormones by the kidneys are not involved in the specificity of hormones. While some hormones may bind to plasma proteins, this is not the main mechanism of specificity.

The Specificity of Hormones Is Due to