A _______, associated with the plasma membrane, is activated by hormones to begin a series of molecular events.
A) prostaglandin
B) cAMP second messenger
C) calmodulin molecule
D) G protein

Question

Quizplus · Accepted Answer

G proteins are a type of membrane protein that are activated by hormones and serve as intermediaries to transmit the signal from the extracellular hormone to the intracellular components. This activation leads to the release of a second messenger such as cAMP, which initiates a series of molecular events. Prostaglandins and calmodulin molecules are also associated with the plasma membrane, but they are not directly involved in the activation of signaling pathways like G proteins and cAMP.

A _______, Associated with the Plasma Membrane, Is Activated by Hormones