Question

Tasting involves many different cell-signaling processes that ultimately generate nerve signals transduced by membrane depolarization. Sweet tastes result in PIP2 hydrolysis, while salty tastes allow sodium ions to directly alter the membrane potential. What can you deduce about the signaling mechanisms for sweet and salty?

Answer 1

We can deduce that:

1. Sodium ions directly enters the cells, indicating the signal is transduced by an ion channel.

2. Sweet utilizes the GRCP signaling pathway, activating phospholipase C.

Step-by-step explanation:

IN SALTY, the Sodium ion passes through dynamic various chambers that can be located on the apical membrane of the taste buds.

Sweet utilizes GRCP signaling pathway va activation of phospholipase C in order to produce IP3 and DAG.