Upregulation of a target cell can occur in response to
A)prolonged decrease in the level of a hormone.
B)prolonged increase in the level of a hormone.
C)signals from antagonistic hormone products.
D)signals from the posterior pituitary.

Question

Quizplus · Accepted Answer

Upregulation of a target cell often occurs in response to a prolonged decrease in the level of a hormone, leading to an increase in the number of receptors on the target cell to enhance its sensitivity to that hormone.

Upregulation of a Target Cell Can Occur in Response to