Which Statement About the IP₃-DAG Pathway Is False

Multiple Choice

Which statement about the IP₃-DAG pathway is false?

A) Diacylglycerol can act as a second messenger.
B) Inositol trisphosphate can act as a second messenger.
C) Protein kinase C can phosphorylate a wide variety of proteins.
D) Inositol trisphosphate remains bound to the membrane after phospholipase C catalyzes its formation.
E) Inositol trisphosphate can open ion channels in the membranes of smooth endoplasmic reticulum, releasing calcium into the cytoplasm.