Consider a substance that carries a message from the surface receptor to the inside of a cell. To which of the following types of molecules does this substance belong?

Question

Quizplus · Accepted Answer

Secondary messengers are small molecules that are produced inside cells in response to the binding of a chemical messenger (ligand) to a receptor on the cell surface. These molecules then carry the message from the cell surface to the inside of the cell, where they trigger specific cellular responses. Therefore, the substance mentioned in the question is a secondary messenger.

Consider a Substance That Carries a Message from the Surface