Second messengers
A)Are necessary for all receptor signal transduction mechanisms
B)Act in the cell cytoplasm
C)Act as intercellular messengers
D)Always function to activate enzymes
E)Are always proteins

Question

Quizplus · Accepted Answer

Second messengers act in the cell cytoplasm to relay signals from receptors to target molecules within the cell. They are not necessary for all receptor signal transduction mechanisms, do not act as intercellular messengers, do not always activate enzymes, and are not always proteins.

Second Messengers