The second-messenger mechanism of hormone action operates by ___________.
A) altering gene expression in the nuclear DNA
B) synthesizing more than one hormone at a time
C) increasing the basal metabolic rate in the target organ
D) binding to specific receptors and employing the services of G proteins and cAMP

Question

Quizplus · Accepted Answer

The second-messenger mechanism of hormone action involves the hormone binding to specific receptors on the target cell membrane, which activates G proteins and cAMP as secondary messengers. This leads to a cascade of reactions that ultimately result in a physiological response within the target cell. This mechanism does not involve altering gene expression, synthesizing more than one hormone at a time, or increasing the basal metabolic rate in the target organ.

The Second-Messenger Mechanism of Hormone Action Operates by ___________