In response to excessive amounts of hormone, a target cell may reduce its number of receptors for that hormone. This is an example of
A) down-regulation.
B) up-regulation.
C) increasing sensitivity to a hormone.
D) increasing specificity to a hormone.

Question

Quizplus · Accepted Answer

Down-regulation is the process by which a cell decreases the number of receptors to a particular hormone in response to an excess of that hormone, thereby reducing its sensitivity to the hormone.

In Response to Excessive Amounts of Hormone, a Target Cell