What is a second messenger system?
A) A set of hormones that carries primary hormones to target cells
B) A chemical that prolongs the effects of a particular hormone
C) A system that promotes a negative feedback loop to stop the secretion of a particular hormone
D) A cascade of processes that influences a cell's response to a hormone

Question

Quizplus · Accepted Answer

A second messenger system refers to a series of molecular events that are involved in transmitting a signal from a hormone receptor on the cell surface to the cellular response. It involves the activation of intracellular signaling molecules, referred to as secondary messengers, that trigger a cascade of biochemical reactions ultimately resulting in a cellular response. This system is crucial for amplifying and modulating the effect of hormones on target cells.

What Is a Second Messenger System