The Biology Project > Cell Biology > Cell Signaling > Problem Set

Cell Signaling Problem Set

Problem 3: Signal Responses II

Which of the following is NOT a typical event associated with cell signaling?

A.	Activation of G-proteins by exchanging GTP for GDP
B.	Production of the second messengers cAMP and IP3
C.	Activation of protein kinases
D.	Release of calcium ions from cell membranes
E.	Stimulation of apoptosis There are situations where cells are signaled to die by apoptosis, but this is not a typical cellular response to an external signal.

The Biology Project > Cell Biology > Cell Signaling > Problem Set