The last step in the nonsteroid hormone mechanism of action is:
A) joining with the G protein on the cell membrane.
B) protein kinases activate other enzymes.
C) adenyl cyclase is activated.
D) cAMP is formed.

Question

Quizplus · Accepted Answer

The nonsteroid hormone mechanism of action involves binding of the hormone to a receptor on the cell membrane, which activates a G protein. The G protein then activates adenyl cyclase, which leads to the formation of cAMP. This cAMP then activates protein kinases, which in turn activate other enzymes, leading to a physiological response. Therefore, the last step in this mechanism is the activation of other enzymes by protein kinases.

The Last Step in the Nonsteroid Hormone Mechanism of Action