Which of the Following is Known to Be a Second

Question

Which of the following is known to be a second messenger?
A)Diacylglycerol
B)Phospholipase C
C)ATP
D)Adenylyl cyclase
E)Epinephrine

Accepted Answer

Diacylglycerol is a second messenger that is produced by the action of phospholipase C on phosphatidylinositol 4,5-bisphosphate. Second messengers are small molecules that transmit signals from the cell surface to the inside of the cell.