Increased Activity of Phosphodiesterase in a Target Cell Would Decrease

Question

Increased activity of phosphodiesterase in a target cell would decrease its level of
A) testosterone.
B) estrogen.
C) thyroid hormone.
D) cAMP.
E) progesterone.

Accepted Answer

Phosphodiesterase breaks down cAMP, so an increase in its activity would decrease the level of cAMP in the target cell. The other options are not directly affected by the activity of phosphodiesterase.