Which pair are examples of second messengers?
A)sodium,potassium ions
B)amino acids,proteins
C)steroids,lipids
D)sugars,starches
E)cAMP,calcium ions

Question

Quizplus · Accepted Answer

cAMP and calcium ions are both examples of second messengers. Second messengers are molecules that transmit signals inside cells, often from the cell membrane to the nucleus, in response to the binding of a signaling molecule (the first messenger) to a receptor on the cell surface. Other examples of second messengers include inositol triphosphate (IP3) and diacylglycerol (DAG). Sodium, potassium ions, amino acids, proteins, steroids, lipids, sugars, and starches are not second messengers.

Which Pair Are Examples of Second Messengers