Virtually all amino acid-based hormones exert their signaling effects through intracellular___________.
A) nucleotides
B) calcium
C) deactivating ions
D) second messengers

Question

Quizplus · Accepted Answer

Amino acid-based hormones are unable to enter target cells, therefore they bind to specific receptors on the surface of the cell, which then activate second messenger systems inside the cell, leading to downstream effects. Examples of second messengers include cyclic AMP (cAMP), inositol triphosphate (IP3), and diacylglycerol (DAG).

Virtually All Amino Acid-Based Hormones Exert Their Signaling Effects Through