Which taste receptor does NOT use a G-protein-coupled receptor for activation?
A)bitter
B)sweet
C)salty
D)umami

Question

Quizplus · Accepted Answer

The salty taste receptor does not use a G-protein-coupled receptor for activation. Instead, it involves direct ion channel signaling, where salty compounds like sodium ions enter the taste cells and directly depolarize the cell membrane, leading to neurotransmitter release and taste sensation. In contrast, bitter, sweet, and umami taste receptors all use G-protein-coupled receptors for activation.

Which Taste Receptor Does NOT Use a G-Protein-Coupled Receptor for Activation