What is the role of the second messenger?
A)to set in motion the enzyme cascade
B)convey information between two individuals of the same species
C)binds to the cell surface
D)All of the answer choices are functions of the second messenger.
E)None of the answer choices are functions of the second messenger.

Question

Quizplus · Accepted Answer

The role of the second messenger is to set in motion the enzyme cascade, which is a series of reactions inside the cell triggered by the binding of a signaling molecule to a receptor on the cell surface. The second messenger acts as a mediator between the receptor and the intracellular enzymes that carry out the cellular response. Examples of second messengers include cyclic AMP (cAMP) and Inositol triphosphate (IP3). Therefore, option A is the correct answer.

What Is the Role of the Second Messenger